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1
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=head1 NAME |
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2
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3
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Time::OlsonTZ::Data - Olson timezone data |
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4
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5
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=head1 SYNOPSIS |
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6
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7
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use Time::OlsonTZ::Data qw(olson_version); |
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8
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9
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$version = olson_version; |
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10
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11
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use Time::OlsonTZ::Data qw( |
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12
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olson_canonical_names olson_link_names olson_all_names |
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13
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olson_links olson_country_selection); |
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14
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15
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$names = olson_canonical_names; |
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$names = olson_link_names; |
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$names = olson_all_names; |
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18
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$links = olson_links; |
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$countries = olson_country_selection; |
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20
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21
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use Time::OlsonTZ::Data qw(olson_tzfile); |
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22
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23
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$filename = olson_tzfile("America/New_York"); |
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24
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25
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=head1 DESCRIPTION |
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26
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27
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This module encapsulates the Olson timezone database, providing binary |
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28
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tzfiles and ancillary data. Each version of this module encapsulates |
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29
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a particular version of the timezone database. It is intended to be |
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30
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regularly updated, as the timezone database changes. |
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31
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32
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=cut |
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33
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34
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package Time::OlsonTZ::Data; |
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35
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36
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9
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9
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1289782
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{ use 5.006; } |
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9
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73
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37
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9
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9
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52
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use warnings; |
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9
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35
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9
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665
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38
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9
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9
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59
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use strict; |
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9
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17
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9
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459
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39
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40
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our $VERSION = "0.202601"; |
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41
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42
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9
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9
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4213
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use parent "Exporter"; |
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9
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2640
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9
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64
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43
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our @EXPORT_OK = qw( |
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44
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olson_version olson_code_version olson_data_version |
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45
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olson_canonical_names olson_link_names olson_all_names |
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46
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olson_links |
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47
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olson_country_selection |
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48
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olson_tzfile |
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49
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); |
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50
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51
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my($datavol, $datadir); |
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52
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sub _data_file($) { |
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53
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1197
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1197
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1842
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my($upath) = @_; |
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54
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1197
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100
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2039
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unless(defined $datadir) { |
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55
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4
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72
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require File::Spec; |
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56
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($datavol, $datadir, undef) = |
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57
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4
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177
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File::Spec->splitpath($INC{"Time/OlsonTZ/Data.pm"}); |
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58
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} |
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59
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1197
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2463
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my @nameparts = split(/\//, $upath); |
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60
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1197
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1876
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my $filename = pop(@nameparts); |
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61
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1197
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10492
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return File::Spec->catpath($datavol, |
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62
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File::Spec->catdir($datadir, "Data", @nameparts), $filename); |
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63
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} |
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64
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65
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=head1 FUNCTIONS |
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66
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67
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=head2 Basic information |
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68
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69
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=over |
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70
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71
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=item olson_version |
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72
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73
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Returns the version number of the database that this module encapsulates. |
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74
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Version numbers for the Olson database currently consist of a year number |
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75
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and a lowercase letter, such as "C<2010k>"; they are not guaranteed to |
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76
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retain this format in the future. |
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77
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78
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=cut |
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79
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80
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9
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9
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2533
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use constant olson_version => "2026a"; |
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9
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17
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9
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1237
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81
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82
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=item olson_code_version |
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83
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84
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Returns the version number of the code part of the database that this |
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85
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module encapsulates. This is now always the same as the value returned |
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86
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by L. Until late 2012 the database was distributed in |
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87
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two parts, each with their own version number, so this was a distinct |
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88
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piece of information. |
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89
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90
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=cut |
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91
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92
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9
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9
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66
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use constant olson_code_version => "2026a"; |
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9
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17
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9
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609
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93
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94
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=item olson_data_version |
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95
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96
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Returns the version number of the data part of the database that this |
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97
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module encapsulates. This is now always the same as the value returned |
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98
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by L. Until late 2012 the database was distributed in |
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99
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two parts, each with their own version number, so this was a distinct |
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100
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piece of information. |
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101
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102
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=cut |
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103
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104
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9
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9
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79
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use constant olson_data_version => "2026a"; |
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9
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18
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9
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12019
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105
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106
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=back |
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107
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108
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=head2 Zone metadata |
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109
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110
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=over |
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111
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112
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=item olson_canonical_names |
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113
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114
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Returns the set of timezone names that this version of the database |
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115
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defines as canonical. These are the timezone names that are directly |
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116
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associated with a set of observance data. The return value is a reference |
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117
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to a hash, in which the keys are the canonical timezone names and the |
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118
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values are all C. |
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119
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120
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=cut |
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121
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122
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my $cn = q(+{ map { ($_ => undef) } qw( |
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123
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Africa/Abidjan Africa/Algiers Africa/Bissau Africa/Cairo |
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124
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Africa/Casablanca Africa/Ceuta Africa/El_Aaiun Africa/Johannesburg |
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125
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Africa/Juba Africa/Khartoum Africa/Lagos Africa/Maputo Africa/Monrovia |
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126
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Africa/Nairobi Africa/Ndjamena Africa/Sao_Tome Africa/Tripoli |
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127
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Africa/Tunis Africa/Windhoek America/Adak America/Anchorage |
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128
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America/Araguaina America/Argentina/Buenos_Aires |
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129
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America/Argentina/Catamarca America/Argentina/Cordoba |
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130
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America/Argentina/Jujuy America/Argentina/La_Rioja |
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131
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America/Argentina/Mendoza America/Argentina/Rio_Gallegos |
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132
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America/Argentina/Salta America/Argentina/San_Juan |
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133
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America/Argentina/San_Luis America/Argentina/Tucuman |
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134
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America/Argentina/Ushuaia America/Asuncion America/Bahia |
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135
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America/Bahia_Banderas America/Barbados America/Belem America/Belize |
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136
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America/Boa_Vista America/Bogota America/Boise America/Cambridge_Bay |
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137
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America/Campo_Grande America/Cancun America/Caracas America/Cayenne |
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138
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America/Chicago America/Chihuahua America/Ciudad_Juarez |
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139
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America/Costa_Rica America/Coyhaique America/Cuiaba America/Danmarkshavn |
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140
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America/Dawson America/Dawson_Creek America/Denver America/Detroit |
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141
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America/Edmonton America/Eirunepe America/El_Salvador |
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142
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America/Fort_Nelson America/Fortaleza America/Glace_Bay |
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143
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America/Goose_Bay America/Grand_Turk America/Guatemala America/Guayaquil |
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144
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America/Guyana America/Halifax America/Havana America/Hermosillo |
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145
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America/Indiana/Indianapolis America/Indiana/Knox |
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146
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America/Indiana/Marengo America/Indiana/Petersburg |
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147
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America/Indiana/Tell_City America/Indiana/Vevay |
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148
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America/Indiana/Vincennes America/Indiana/Winamac America/Inuvik |
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149
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America/Iqaluit America/Jamaica America/Juneau |
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150
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America/Kentucky/Louisville America/Kentucky/Monticello America/La_Paz |
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151
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America/Lima America/Los_Angeles America/Maceio America/Managua |
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152
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America/Manaus America/Martinique America/Matamoros America/Mazatlan |
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153
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America/Menominee America/Merida America/Metlakatla America/Mexico_City |
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154
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America/Miquelon America/Moncton America/Monterrey America/Montevideo |
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155
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America/New_York America/Nome America/Noronha |
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156
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America/North_Dakota/Beulah America/North_Dakota/Center |
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157
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America/North_Dakota/New_Salem America/Nuuk America/Ojinaga |
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158
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America/Panama America/Paramaribo America/Phoenix America/Port-au-Prince |
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159
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America/Porto_Velho America/Puerto_Rico America/Punta_Arenas |
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160
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America/Rankin_Inlet America/Recife America/Regina America/Resolute |
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161
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America/Rio_Branco America/Santarem America/Santiago |
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162
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America/Santo_Domingo America/Sao_Paulo America/Scoresbysund |
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163
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America/Sitka America/St_Johns America/Swift_Current America/Tegucigalpa |
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164
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America/Thule America/Tijuana America/Toronto America/Vancouver |
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165
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America/Whitehorse America/Winnipeg America/Yakutat Antarctica/Casey |
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166
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Antarctica/Davis Antarctica/Macquarie Antarctica/Mawson |
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167
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Antarctica/Palmer Antarctica/Rothera Antarctica/Troll Antarctica/Vostok |
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168
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Asia/Almaty Asia/Amman Asia/Anadyr Asia/Aqtau Asia/Aqtobe Asia/Ashgabat |
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169
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Asia/Atyrau Asia/Baghdad Asia/Baku Asia/Bangkok Asia/Barnaul Asia/Beirut |
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170
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Asia/Bishkek Asia/Chita Asia/Colombo Asia/Damascus Asia/Dhaka Asia/Dili |
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171
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Asia/Dubai Asia/Dushanbe Asia/Famagusta Asia/Gaza Asia/Hebron |
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172
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Asia/Ho_Chi_Minh Asia/Hong_Kong Asia/Hovd Asia/Irkutsk Asia/Jakarta |
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173
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Asia/Jayapura Asia/Jerusalem Asia/Kabul Asia/Kamchatka Asia/Karachi |
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174
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Asia/Kathmandu Asia/Khandyga Asia/Kolkata Asia/Krasnoyarsk Asia/Kuching |
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175
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Asia/Macau Asia/Magadan Asia/Makassar Asia/Manila Asia/Nicosia |
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176
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Asia/Novokuznetsk Asia/Novosibirsk Asia/Omsk Asia/Oral Asia/Pontianak |
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177
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Asia/Pyongyang Asia/Qatar Asia/Qostanay Asia/Qyzylorda Asia/Riyadh |
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178
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Asia/Sakhalin Asia/Samarkand Asia/Seoul Asia/Shanghai Asia/Singapore |
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179
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Asia/Srednekolymsk Asia/Taipei Asia/Tashkent Asia/Tbilisi Asia/Tehran |
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180
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Asia/Thimphu Asia/Tokyo Asia/Tomsk Asia/Ulaanbaatar Asia/Urumqi |
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181
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Asia/Ust-Nera Asia/Vladivostok Asia/Yakutsk Asia/Yangon |
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182
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Asia/Yekaterinburg Asia/Yerevan Atlantic/Azores Atlantic/Bermuda |
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183
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Atlantic/Canary Atlantic/Cape_Verde Atlantic/Faroe Atlantic/Madeira |
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184
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Atlantic/South_Georgia Atlantic/Stanley Australia/Adelaide |
|
185
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Australia/Brisbane Australia/Broken_Hill Australia/Darwin |
|
186
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Australia/Eucla Australia/Hobart Australia/Lindeman Australia/Lord_Howe |
|
187
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Australia/Melbourne Australia/Perth Australia/Sydney Etc/GMT Etc/GMT+1 |
|
188
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Etc/GMT+10 Etc/GMT+11 Etc/GMT+12 Etc/GMT+2 Etc/GMT+3 Etc/GMT+4 Etc/GMT+5 |
|
189
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Etc/GMT+6 Etc/GMT+7 Etc/GMT+8 Etc/GMT+9 Etc/GMT-1 Etc/GMT-10 Etc/GMT-11 |
|
190
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Etc/GMT-12 Etc/GMT-13 Etc/GMT-14 Etc/GMT-2 Etc/GMT-3 Etc/GMT-4 Etc/GMT-5 |
|
191
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Etc/GMT-6 Etc/GMT-7 Etc/GMT-8 Etc/GMT-9 Etc/UTC Europe/Andorra |
|
192
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Europe/Astrakhan Europe/Athens Europe/Belgrade Europe/Berlin |
|
193
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Europe/Brussels Europe/Bucharest Europe/Budapest Europe/Chisinau |
|
194
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Europe/Dublin Europe/Gibraltar Europe/Helsinki Europe/Istanbul |
|
195
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Europe/Kaliningrad Europe/Kirov Europe/Kyiv Europe/Lisbon Europe/London |
|
196
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Europe/Madrid Europe/Malta Europe/Minsk Europe/Moscow Europe/Paris |
|
197
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Europe/Prague Europe/Riga Europe/Rome Europe/Samara Europe/Saratov |
|
198
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Europe/Simferopol Europe/Sofia Europe/Tallinn Europe/Tirane |
|
199
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Europe/Ulyanovsk Europe/Vienna Europe/Vilnius Europe/Volgograd |
|
200
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Europe/Warsaw Europe/Zurich Factory Indian/Chagos Indian/Maldives |
|
201
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Indian/Mauritius Pacific/Apia Pacific/Auckland Pacific/Bougainville |
|
202
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Pacific/Chatham Pacific/Easter Pacific/Efate Pacific/Fakaofo |
|
203
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Pacific/Fiji Pacific/Galapagos Pacific/Gambier Pacific/Guadalcanal |
|
204
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Pacific/Guam Pacific/Honolulu Pacific/Kanton Pacific/Kiritimati |
|
205
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Pacific/Kosrae Pacific/Kwajalein Pacific/Marquesas Pacific/Nauru |
|
206
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Pacific/Niue Pacific/Norfolk Pacific/Noumea Pacific/Pago_Pago |
|
207
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Pacific/Palau Pacific/Pitcairn Pacific/Port_Moresby Pacific/Rarotonga |
|
208
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Pacific/Tahiti Pacific/Tarawa Pacific/Tongatapu |
|
209
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) }); |
|
210
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sub olson_canonical_names() { |
|
211
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1205
|
100
|
50
|
1205
|
1
|
852675
|
$cn = eval($cn) || die $@ if ref($cn) eq ""; |
|
212
|
1205
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|
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3113
|
return $cn; |
|
213
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} |
|
214
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215
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=item olson_link_names |
|
216
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217
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|
Returns the set of timezone names that this version of the database |
|
218
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|
defines as links. These are the timezone names that are aliases for |
|
219
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|
other names. The return value is a reference to a hash, in which the |
|
220
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|
keys are the link timezone names and the values are all C. |
|
221
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222
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=cut |
|
223
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|
224
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|
sub olson_links(); |
|
225
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|
226
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|
|
my $ln; |
|
227
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|
|
sub olson_link_names() { |
|
228
|
4
|
|
100
|
4
|
1
|
201
|
return $ln ||= { map { ($_ => undef) } keys %{olson_links()} }; |
|
|
771
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|
1884
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3
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13
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|
229
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} |
|
230
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231
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|
|
=item olson_all_names |
|
232
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|
233
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|
Returns the set of timezone names that this version of the |
|
234
|
|
|
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|
|
database defines. These are the L and the |
|
235
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|
L. The return value is a reference to a hash, in |
|
236
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|
|
which the keys are the timezone names and the values are all C. |
|
237
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|
238
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|
=cut |
|
239
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|
240
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|
my $an; |
|
241
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|
|
sub olson_all_names() { |
|
242
|
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|
|
return $an ||= { |
|
243
|
2
|
|
|
|
|
8
|
%{olson_canonical_names()}, |
|
244
|
2
|
|
50
|
2
|
1
|
253836
|
%{olson_link_names()}, |
|
|
2
|
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|
10
|
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|
245
|
|
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|
|
}; |
|
246
|
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|
|
} |
|
247
|
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|
248
|
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|
|
|
=item olson_links |
|
249
|
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|
250
|
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|
|
|
Returns details of the timezone name links in this version of the |
|
251
|
|
|
|
|
|
|
database. Each link defines one timezone name as an alias for some |
|
252
|
|
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|
|
other timezone name. The return value is a reference to a hash, in |
|
253
|
|
|
|
|
|
|
which the keys are the aliases and each value is the canonical name of |
|
254
|
|
|
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|
|
the timezone to which that alias refers. All such canonical names can |
|
255
|
|
|
|
|
|
|
be found in the L hash. |
|
256
|
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|
257
|
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|
=cut |
|
258
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|
259
|
|
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|
|
my $li = q(+{ |
|
260
|
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|
|
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|
|
"Africa/Accra" => "Africa/Abidjan", |
|
261
|
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|
|
"Africa/Addis_Ababa" => "Africa/Nairobi", |
|
262
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|
|
"Africa/Asmara" => "Africa/Nairobi", |
|
263
|
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|
|
"Africa/Asmera" => "Africa/Nairobi", |
|
264
|
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|
|
"Africa/Bamako" => "Africa/Abidjan", |
|
265
|
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|
|
"Africa/Bangui" => "Africa/Lagos", |
|
266
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|
|
"Africa/Banjul" => "Africa/Abidjan", |
|
267
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|
|
"Africa/Blantyre" => "Africa/Maputo", |
|
268
|
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|
|
"Africa/Brazzaville" => "Africa/Lagos", |
|
269
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|
|
"Africa/Bujumbura" => "Africa/Maputo", |
|
270
|
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|
|
"Africa/Conakry" => "Africa/Abidjan", |
|
271
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|
|
"Africa/Dakar" => "Africa/Abidjan", |
|
272
|
|
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|
|
"Africa/Dar_es_Salaam" => "Africa/Nairobi", |
|
273
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|
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|
|
"Africa/Djibouti" => "Africa/Nairobi", |
|
274
|
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|
|
"Africa/Douala" => "Africa/Lagos", |
|
275
|
|
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|
|
"Africa/Freetown" => "Africa/Abidjan", |
|
276
|
|
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|
|
"Africa/Gaborone" => "Africa/Maputo", |
|
277
|
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|
|
"Africa/Harare" => "Africa/Maputo", |
|
278
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|
|
"Africa/Kampala" => "Africa/Nairobi", |
|
279
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|
|
"Africa/Kigali" => "Africa/Maputo", |
|
280
|
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|
|
"Africa/Kinshasa" => "Africa/Lagos", |
|
281
|
|
|
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|
|
"Africa/Libreville" => "Africa/Lagos", |
|
282
|
|
|
|
|
|
|
"Africa/Lome" => "Africa/Abidjan", |
|
283
|
|
|
|
|
|
|
"Africa/Luanda" => "Africa/Lagos", |
|
284
|
|
|
|
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|
|
"Africa/Lubumbashi" => "Africa/Maputo", |
|
285
|
|
|
|
|
|
|
"Africa/Lusaka" => "Africa/Maputo", |
|
286
|
|
|
|
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|
|
"Africa/Malabo" => "Africa/Lagos", |
|
287
|
|
|
|
|
|
|
"Africa/Maseru" => "Africa/Johannesburg", |
|
288
|
|
|
|
|
|
|
"Africa/Mbabane" => "Africa/Johannesburg", |
|
289
|
|
|
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|
|
"Africa/Mogadishu" => "Africa/Nairobi", |
|
290
|
|
|
|
|
|
|
"Africa/Niamey" => "Africa/Lagos", |
|
291
|
|
|
|
|
|
|
"Africa/Nouakchott" => "Africa/Abidjan", |
|
292
|
|
|
|
|
|
|
"Africa/Ouagadougou" => "Africa/Abidjan", |
|
293
|
|
|
|
|
|
|
"Africa/Porto-Novo" => "Africa/Lagos", |
|
294
|
|
|
|
|
|
|
"Africa/Timbuktu" => "Africa/Abidjan", |
|
295
|
|
|
|
|
|
|
"America/Anguilla" => "America/Puerto_Rico", |
|
296
|
|
|
|
|
|
|
"America/Antigua" => "America/Puerto_Rico", |
|
297
|
|
|
|
|
|
|
"America/Argentina/ComodRivadavia" => "America/Argentina/Catamarca", |
|
298
|
|
|
|
|
|
|
"America/Aruba" => "America/Puerto_Rico", |
|
299
|
|
|
|
|
|
|
"America/Atikokan" => "America/Panama", |
|
300
|
|
|
|
|
|
|
"America/Atka" => "America/Adak", |
|
301
|
|
|
|
|
|
|
"America/Blanc-Sablon" => "America/Puerto_Rico", |
|
302
|
|
|
|
|
|
|
"America/Buenos_Aires" => "America/Argentina/Buenos_Aires", |
|
303
|
|
|
|
|
|
|
"America/Catamarca" => "America/Argentina/Catamarca", |
|
304
|
|
|
|
|
|
|
"America/Cayman" => "America/Panama", |
|
305
|
|
|
|
|
|
|
"America/Coral_Harbour" => "America/Panama", |
|
306
|
|
|
|
|
|
|
"America/Cordoba" => "America/Argentina/Cordoba", |
|
307
|
|
|
|
|
|
|
"America/Creston" => "America/Phoenix", |
|
308
|
|
|
|
|
|
|
"America/Curacao" => "America/Puerto_Rico", |
|
309
|
|
|
|
|
|
|
"America/Dominica" => "America/Puerto_Rico", |
|
310
|
|
|
|
|
|
|
"America/Ensenada" => "America/Tijuana", |
|
311
|
|
|
|
|
|
|
"America/Fort_Wayne" => "America/Indiana/Indianapolis", |
|
312
|
|
|
|
|
|
|
"America/Godthab" => "America/Nuuk", |
|
313
|
|
|
|
|
|
|
"America/Grenada" => "America/Puerto_Rico", |
|
314
|
|
|
|
|
|
|
"America/Guadeloupe" => "America/Puerto_Rico", |
|
315
|
|
|
|
|
|
|
"America/Indianapolis" => "America/Indiana/Indianapolis", |
|
316
|
|
|
|
|
|
|
"America/Jujuy" => "America/Argentina/Jujuy", |
|
317
|
|
|
|
|
|
|
"America/Knox_IN" => "America/Indiana/Knox", |
|
318
|
|
|
|
|
|
|
"America/Kralendijk" => "America/Puerto_Rico", |
|
319
|
|
|
|
|
|
|
"America/Louisville" => "America/Kentucky/Louisville", |
|
320
|
|
|
|
|
|
|
"America/Lower_Princes" => "America/Puerto_Rico", |
|
321
|
|
|
|
|
|
|
"America/Marigot" => "America/Puerto_Rico", |
|
322
|
|
|
|
|
|
|
"America/Mendoza" => "America/Argentina/Mendoza", |
|
323
|
|
|
|
|
|
|
"America/Montreal" => "America/Toronto", |
|
324
|
|
|
|
|
|
|
"America/Montserrat" => "America/Puerto_Rico", |
|
325
|
|
|
|
|
|
|
"America/Nassau" => "America/Toronto", |
|
326
|
|
|
|
|
|
|
"America/Nipigon" => "America/Toronto", |
|
327
|
|
|
|
|
|
|
"America/Pangnirtung" => "America/Iqaluit", |
|
328
|
|
|
|
|
|
|
"America/Port_of_Spain" => "America/Puerto_Rico", |
|
329
|
|
|
|
|
|
|
"America/Porto_Acre" => "America/Rio_Branco", |
|
330
|
|
|
|
|
|
|
"America/Rainy_River" => "America/Winnipeg", |
|
331
|
|
|
|
|
|
|
"America/Rosario" => "America/Argentina/Cordoba", |
|
332
|
|
|
|
|
|
|
"America/Santa_Isabel" => "America/Tijuana", |
|
333
|
|
|
|
|
|
|
"America/Shiprock" => "America/Denver", |
|
334
|
|
|
|
|
|
|
"America/St_Barthelemy" => "America/Puerto_Rico", |
|
335
|
|
|
|
|
|
|
"America/St_Kitts" => "America/Puerto_Rico", |
|
336
|
|
|
|
|
|
|
"America/St_Lucia" => "America/Puerto_Rico", |
|
337
|
|
|
|
|
|
|
"America/St_Thomas" => "America/Puerto_Rico", |
|
338
|
|
|
|
|
|
|
"America/St_Vincent" => "America/Puerto_Rico", |
|
339
|
|
|
|
|
|
|
"America/Thunder_Bay" => "America/Toronto", |
|
340
|
|
|
|
|
|
|
"America/Tortola" => "America/Puerto_Rico", |
|
341
|
|
|
|
|
|
|
"America/Virgin" => "America/Puerto_Rico", |
|
342
|
|
|
|
|
|
|
"America/Yellowknife" => "America/Edmonton", |
|
343
|
|
|
|
|
|
|
"Antarctica/DumontDUrville" => "Pacific/Port_Moresby", |
|
344
|
|
|
|
|
|
|
"Antarctica/McMurdo" => "Pacific/Auckland", |
|
345
|
|
|
|
|
|
|
"Antarctica/South_Pole" => "Pacific/Auckland", |
|
346
|
|
|
|
|
|
|
"Antarctica/Syowa" => "Asia/Riyadh", |
|
347
|
|
|
|
|
|
|
"Arctic/Longyearbyen" => "Europe/Berlin", |
|
348
|
|
|
|
|
|
|
"Asia/Aden" => "Asia/Riyadh", |
|
349
|
|
|
|
|
|
|
"Asia/Ashkhabad" => "Asia/Ashgabat", |
|
350
|
|
|
|
|
|
|
"Asia/Bahrain" => "Asia/Qatar", |
|
351
|
|
|
|
|
|
|
"Asia/Brunei" => "Asia/Kuching", |
|
352
|
|
|
|
|
|
|
"Asia/Calcutta" => "Asia/Kolkata", |
|
353
|
|
|
|
|
|
|
"Asia/Choibalsan" => "Asia/Ulaanbaatar", |
|
354
|
|
|
|
|
|
|
"Asia/Chongqing" => "Asia/Shanghai", |
|
355
|
|
|
|
|
|
|
"Asia/Chungking" => "Asia/Shanghai", |
|
356
|
|
|
|
|
|
|
"Asia/Dacca" => "Asia/Dhaka", |
|
357
|
|
|
|
|
|
|
"Asia/Harbin" => "Asia/Shanghai", |
|
358
|
|
|
|
|
|
|
"Asia/Istanbul" => "Europe/Istanbul", |
|
359
|
|
|
|
|
|
|
"Asia/Kashgar" => "Asia/Urumqi", |
|
360
|
|
|
|
|
|
|
"Asia/Katmandu" => "Asia/Kathmandu", |
|
361
|
|
|
|
|
|
|
"Asia/Kuala_Lumpur" => "Asia/Singapore", |
|
362
|
|
|
|
|
|
|
"Asia/Kuwait" => "Asia/Riyadh", |
|
363
|
|
|
|
|
|
|
"Asia/Macao" => "Asia/Macau", |
|
364
|
|
|
|
|
|
|
"Asia/Muscat" => "Asia/Dubai", |
|
365
|
|
|
|
|
|
|
"Asia/Phnom_Penh" => "Asia/Bangkok", |
|
366
|
|
|
|
|
|
|
"Asia/Rangoon" => "Asia/Yangon", |
|
367
|
|
|
|
|
|
|
"Asia/Saigon" => "Asia/Ho_Chi_Minh", |
|
368
|
|
|
|
|
|
|
"Asia/Tel_Aviv" => "Asia/Jerusalem", |
|
369
|
|
|
|
|
|
|
"Asia/Thimbu" => "Asia/Thimphu", |
|
370
|
|
|
|
|
|
|
"Asia/Ujung_Pandang" => "Asia/Makassar", |
|
371
|
|
|
|
|
|
|
"Asia/Ulan_Bator" => "Asia/Ulaanbaatar", |
|
372
|
|
|
|
|
|
|
"Asia/Vientiane" => "Asia/Bangkok", |
|
373
|
|
|
|
|
|
|
"Atlantic/Faeroe" => "Atlantic/Faroe", |
|
374
|
|
|
|
|
|
|
"Atlantic/Jan_Mayen" => "Europe/Berlin", |
|
375
|
|
|
|
|
|
|
"Atlantic/Reykjavik" => "Africa/Abidjan", |
|
376
|
|
|
|
|
|
|
"Atlantic/St_Helena" => "Africa/Abidjan", |
|
377
|
|
|
|
|
|
|
"Australia/ACT" => "Australia/Sydney", |
|
378
|
|
|
|
|
|
|
"Australia/Canberra" => "Australia/Sydney", |
|
379
|
|
|
|
|
|
|
"Australia/Currie" => "Australia/Hobart", |
|
380
|
|
|
|
|
|
|
"Australia/LHI" => "Australia/Lord_Howe", |
|
381
|
|
|
|
|
|
|
"Australia/NSW" => "Australia/Sydney", |
|
382
|
|
|
|
|
|
|
"Australia/North" => "Australia/Darwin", |
|
383
|
|
|
|
|
|
|
"Australia/Queensland" => "Australia/Brisbane", |
|
384
|
|
|
|
|
|
|
"Australia/South" => "Australia/Adelaide", |
|
385
|
|
|
|
|
|
|
"Australia/Tasmania" => "Australia/Hobart", |
|
386
|
|
|
|
|
|
|
"Australia/Victoria" => "Australia/Melbourne", |
|
387
|
|
|
|
|
|
|
"Australia/West" => "Australia/Perth", |
|
388
|
|
|
|
|
|
|
"Australia/Yancowinna" => "Australia/Broken_Hill", |
|
389
|
|
|
|
|
|
|
"Brazil/Acre" => "America/Rio_Branco", |
|
390
|
|
|
|
|
|
|
"Brazil/DeNoronha" => "America/Noronha", |
|
391
|
|
|
|
|
|
|
"Brazil/East" => "America/Sao_Paulo", |
|
392
|
|
|
|
|
|
|
"Brazil/West" => "America/Manaus", |
|
393
|
|
|
|
|
|
|
CET => "Europe/Brussels", |
|
394
|
|
|
|
|
|
|
CST6CDT => "America/Chicago", |
|
395
|
|
|
|
|
|
|
"Canada/Atlantic" => "America/Halifax", |
|
396
|
|
|
|
|
|
|
"Canada/Central" => "America/Winnipeg", |
|
397
|
|
|
|
|
|
|
"Canada/Eastern" => "America/Toronto", |
|
398
|
|
|
|
|
|
|
"Canada/Mountain" => "America/Edmonton", |
|
399
|
|
|
|
|
|
|
"Canada/Newfoundland" => "America/St_Johns", |
|
400
|
|
|
|
|
|
|
"Canada/Pacific" => "America/Vancouver", |
|
401
|
|
|
|
|
|
|
"Canada/Saskatchewan" => "America/Regina", |
|
402
|
|
|
|
|
|
|
"Canada/Yukon" => "America/Whitehorse", |
|
403
|
|
|
|
|
|
|
"Chile/Continental" => "America/Santiago", |
|
404
|
|
|
|
|
|
|
"Chile/EasterIsland" => "Pacific/Easter", |
|
405
|
|
|
|
|
|
|
Cuba => "America/Havana", |
|
406
|
|
|
|
|
|
|
EET => "Europe/Athens", |
|
407
|
|
|
|
|
|
|
EST => "America/Panama", |
|
408
|
|
|
|
|
|
|
EST5EDT => "America/New_York", |
|
409
|
|
|
|
|
|
|
Egypt => "Africa/Cairo", |
|
410
|
|
|
|
|
|
|
Eire => "Europe/Dublin", |
|
411
|
|
|
|
|
|
|
"Etc/GMT+0" => "Etc/GMT", |
|
412
|
|
|
|
|
|
|
"Etc/GMT-0" => "Etc/GMT", |
|
413
|
|
|
|
|
|
|
"Etc/GMT0" => "Etc/GMT", |
|
414
|
|
|
|
|
|
|
"Etc/Greenwich" => "Etc/GMT", |
|
415
|
|
|
|
|
|
|
"Etc/UCT" => "Etc/UTC", |
|
416
|
|
|
|
|
|
|
"Etc/Universal" => "Etc/UTC", |
|
417
|
|
|
|
|
|
|
"Etc/Zulu" => "Etc/UTC", |
|
418
|
|
|
|
|
|
|
"Europe/Amsterdam" => "Europe/Brussels", |
|
419
|
|
|
|
|
|
|
"Europe/Belfast" => "Europe/London", |
|
420
|
|
|
|
|
|
|
"Europe/Bratislava" => "Europe/Prague", |
|
421
|
|
|
|
|
|
|
"Europe/Busingen" => "Europe/Zurich", |
|
422
|
|
|
|
|
|
|
"Europe/Copenhagen" => "Europe/Berlin", |
|
423
|
|
|
|
|
|
|
"Europe/Guernsey" => "Europe/London", |
|
424
|
|
|
|
|
|
|
"Europe/Isle_of_Man" => "Europe/London", |
|
425
|
|
|
|
|
|
|
"Europe/Jersey" => "Europe/London", |
|
426
|
|
|
|
|
|
|
"Europe/Kiev" => "Europe/Kyiv", |
|
427
|
|
|
|
|
|
|
"Europe/Ljubljana" => "Europe/Belgrade", |
|
428
|
|
|
|
|
|
|
"Europe/Luxembourg" => "Europe/Brussels", |
|
429
|
|
|
|
|
|
|
"Europe/Mariehamn" => "Europe/Helsinki", |
|
430
|
|
|
|
|
|
|
"Europe/Monaco" => "Europe/Paris", |
|
431
|
|
|
|
|
|
|
"Europe/Nicosia" => "Asia/Nicosia", |
|
432
|
|
|
|
|
|
|
"Europe/Oslo" => "Europe/Berlin", |
|
433
|
|
|
|
|
|
|
"Europe/Podgorica" => "Europe/Belgrade", |
|
434
|
|
|
|
|
|
|
"Europe/San_Marino" => "Europe/Rome", |
|
435
|
|
|
|
|
|
|
"Europe/Sarajevo" => "Europe/Belgrade", |
|
436
|
|
|
|
|
|
|
"Europe/Skopje" => "Europe/Belgrade", |
|
437
|
|
|
|
|
|
|
"Europe/Stockholm" => "Europe/Berlin", |
|
438
|
|
|
|
|
|
|
"Europe/Tiraspol" => "Europe/Chisinau", |
|
439
|
|
|
|
|
|
|
"Europe/Uzhgorod" => "Europe/Kyiv", |
|
440
|
|
|
|
|
|
|
"Europe/Vaduz" => "Europe/Zurich", |
|
441
|
|
|
|
|
|
|
"Europe/Vatican" => "Europe/Rome", |
|
442
|
|
|
|
|
|
|
"Europe/Zagreb" => "Europe/Belgrade", |
|
443
|
|
|
|
|
|
|
"Europe/Zaporozhye" => "Europe/Kyiv", |
|
444
|
|
|
|
|
|
|
GB => "Europe/London", |
|
445
|
|
|
|
|
|
|
"GB-Eire" => "Europe/London", |
|
446
|
|
|
|
|
|
|
GMT => "Etc/GMT", |
|
447
|
|
|
|
|
|
|
"GMT+0" => "Etc/GMT", |
|
448
|
|
|
|
|
|
|
"GMT-0" => "Etc/GMT", |
|
449
|
|
|
|
|
|
|
GMT0 => "Etc/GMT", |
|
450
|
|
|
|
|
|
|
Greenwich => "Etc/GMT", |
|
451
|
|
|
|
|
|
|
HST => "Pacific/Honolulu", |
|
452
|
|
|
|
|
|
|
Hongkong => "Asia/Hong_Kong", |
|
453
|
|
|
|
|
|
|
Iceland => "Africa/Abidjan", |
|
454
|
|
|
|
|
|
|
"Indian/Antananarivo" => "Africa/Nairobi", |
|
455
|
|
|
|
|
|
|
"Indian/Christmas" => "Asia/Bangkok", |
|
456
|
|
|
|
|
|
|
"Indian/Cocos" => "Asia/Yangon", |
|
457
|
|
|
|
|
|
|
"Indian/Comoro" => "Africa/Nairobi", |
|
458
|
|
|
|
|
|
|
"Indian/Kerguelen" => "Indian/Maldives", |
|
459
|
|
|
|
|
|
|
"Indian/Mahe" => "Asia/Dubai", |
|
460
|
|
|
|
|
|
|
"Indian/Mayotte" => "Africa/Nairobi", |
|
461
|
|
|
|
|
|
|
"Indian/Reunion" => "Asia/Dubai", |
|
462
|
|
|
|
|
|
|
Iran => "Asia/Tehran", |
|
463
|
|
|
|
|
|
|
Israel => "Asia/Jerusalem", |
|
464
|
|
|
|
|
|
|
Jamaica => "America/Jamaica", |
|
465
|
|
|
|
|
|
|
Japan => "Asia/Tokyo", |
|
466
|
|
|
|
|
|
|
Kwajalein => "Pacific/Kwajalein", |
|
467
|
|
|
|
|
|
|
Libya => "Africa/Tripoli", |
|
468
|
|
|
|
|
|
|
MET => "Europe/Brussels", |
|
469
|
|
|
|
|
|
|
MST => "America/Phoenix", |
|
470
|
|
|
|
|
|
|
MST7MDT => "America/Denver", |
|
471
|
|
|
|
|
|
|
"Mexico/BajaNorte" => "America/Tijuana", |
|
472
|
|
|
|
|
|
|
"Mexico/BajaSur" => "America/Mazatlan", |
|
473
|
|
|
|
|
|
|
"Mexico/General" => "America/Mexico_City", |
|
474
|
|
|
|
|
|
|
NZ => "Pacific/Auckland", |
|
475
|
|
|
|
|
|
|
"NZ-CHAT" => "Pacific/Chatham", |
|
476
|
|
|
|
|
|
|
Navajo => "America/Denver", |
|
477
|
|
|
|
|
|
|
PRC => "Asia/Shanghai", |
|
478
|
|
|
|
|
|
|
PST8PDT => "America/Los_Angeles", |
|
479
|
|
|
|
|
|
|
"Pacific/Chuuk" => "Pacific/Port_Moresby", |
|
480
|
|
|
|
|
|
|
"Pacific/Enderbury" => "Pacific/Kanton", |
|
481
|
|
|
|
|
|
|
"Pacific/Funafuti" => "Pacific/Tarawa", |
|
482
|
|
|
|
|
|
|
"Pacific/Johnston" => "Pacific/Honolulu", |
|
483
|
|
|
|
|
|
|
"Pacific/Majuro" => "Pacific/Tarawa", |
|
484
|
|
|
|
|
|
|
"Pacific/Midway" => "Pacific/Pago_Pago", |
|
485
|
|
|
|
|
|
|
"Pacific/Pohnpei" => "Pacific/Guadalcanal", |
|
486
|
|
|
|
|
|
|
"Pacific/Ponape" => "Pacific/Guadalcanal", |
|
487
|
|
|
|
|
|
|
"Pacific/Saipan" => "Pacific/Guam", |
|
488
|
|
|
|
|
|
|
"Pacific/Samoa" => "Pacific/Pago_Pago", |
|
489
|
|
|
|
|
|
|
"Pacific/Truk" => "Pacific/Port_Moresby", |
|
490
|
|
|
|
|
|
|
"Pacific/Wake" => "Pacific/Tarawa", |
|
491
|
|
|
|
|
|
|
"Pacific/Wallis" => "Pacific/Tarawa", |
|
492
|
|
|
|
|
|
|
"Pacific/Yap" => "Pacific/Port_Moresby", |
|
493
|
|
|
|
|
|
|
Poland => "Europe/Warsaw", |
|
494
|
|
|
|
|
|
|
Portugal => "Europe/Lisbon", |
|
495
|
|
|
|
|
|
|
ROC => "Asia/Taipei", |
|
496
|
|
|
|
|
|
|
ROK => "Asia/Seoul", |
|
497
|
|
|
|
|
|
|
Singapore => "Asia/Singapore", |
|
498
|
|
|
|
|
|
|
Turkey => "Europe/Istanbul", |
|
499
|
|
|
|
|
|
|
UCT => "Etc/UTC", |
|
500
|
|
|
|
|
|
|
"US/Alaska" => "America/Anchorage", |
|
501
|
|
|
|
|
|
|
"US/Aleutian" => "America/Adak", |
|
502
|
|
|
|
|
|
|
"US/Arizona" => "America/Phoenix", |
|
503
|
|
|
|
|
|
|
"US/Central" => "America/Chicago", |
|
504
|
|
|
|
|
|
|
"US/East-Indiana" => "America/Indiana/Indianapolis", |
|
505
|
|
|
|
|
|
|
"US/Eastern" => "America/New_York", |
|
506
|
|
|
|
|
|
|
"US/Hawaii" => "Pacific/Honolulu", |
|
507
|
|
|
|
|
|
|
"US/Indiana-Starke" => "America/Indiana/Knox", |
|
508
|
|
|
|
|
|
|
"US/Michigan" => "America/Detroit", |
|
509
|
|
|
|
|
|
|
"US/Mountain" => "America/Denver", |
|
510
|
|
|
|
|
|
|
"US/Pacific" => "America/Los_Angeles", |
|
511
|
|
|
|
|
|
|
"US/Samoa" => "Pacific/Pago_Pago", |
|
512
|
|
|
|
|
|
|
UTC => "Etc/UTC", |
|
513
|
|
|
|
|
|
|
Universal => "Etc/UTC", |
|
514
|
|
|
|
|
|
|
"W-SU" => "Europe/Moscow", |
|
515
|
|
|
|
|
|
|
WET => "Europe/Lisbon", |
|
516
|
|
|
|
|
|
|
Zulu => "Etc/UTC", |
|
517
|
|
|
|
|
|
|
}); |
|
518
|
|
|
|
|
|
|
sub olson_links() { |
|
519
|
1461
|
100
|
50
|
1461
|
1
|
195972
|
$li = eval($li) || die $@ if ref($li) eq ""; |
|
520
|
1461
|
|
|
|
|
3498
|
return $li; |
|
521
|
|
|
|
|
|
|
} |
|
522
|
|
|
|
|
|
|
|
|
523
|
|
|
|
|
|
|
=item olson_country_selection |
|
524
|
|
|
|
|
|
|
|
|
525
|
|
|
|
|
|
|
Returns information about how timezones relate to countries, intended |
|
526
|
|
|
|
|
|
|
to aid humans in selecting a geographical timezone. This information |
|
527
|
|
|
|
|
|
|
is derived from the C and C files in the database |
|
528
|
|
|
|
|
|
|
source. |
|
529
|
|
|
|
|
|
|
|
|
530
|
|
|
|
|
|
|
The return value is a reference to a hash, keyed by (ISO 3166 alpha-2 |
|
531
|
|
|
|
|
|
|
uppercase) country code. The value for each country is a hash containing |
|
532
|
|
|
|
|
|
|
these values: |
|
533
|
|
|
|
|
|
|
|
|
534
|
|
|
|
|
|
|
=over |
|
535
|
|
|
|
|
|
|
|
|
536
|
|
|
|
|
|
|
=item B |
|
537
|
|
|
|
|
|
|
|
|
538
|
|
|
|
|
|
|
The ISO 3166 alpha-2 uppercase country code. |
|
539
|
|
|
|
|
|
|
|
|
540
|
|
|
|
|
|
|
=item B |
|
541
|
|
|
|
|
|
|
|
|
542
|
|
|
|
|
|
|
An English name for the country, possibly in a modified form, optimised |
|
543
|
|
|
|
|
|
|
to help humans find the right entry in alphabetical lists. This is |
|
544
|
|
|
|
|
|
|
not necessarily identical to the country's standard short or long name. |
|
545
|
|
|
|
|
|
|
(For other forms of the name, consult a database of countries, keying |
|
546
|
|
|
|
|
|
|
by the country code.) |
|
547
|
|
|
|
|
|
|
|
|
548
|
|
|
|
|
|
|
=item B |
|
549
|
|
|
|
|
|
|
|
|
550
|
|
|
|
|
|
|
Information about the regions of the country that use distinct |
|
551
|
|
|
|
|
|
|
timezones. This is a hash, keyed by English description of the region. |
|
552
|
|
|
|
|
|
|
The description is empty if there is only one region. The value for |
|
553
|
|
|
|
|
|
|
each region is a hash containing these values: |
|
554
|
|
|
|
|
|
|
|
|
555
|
|
|
|
|
|
|
=over |
|
556
|
|
|
|
|
|
|
|
|
557
|
|
|
|
|
|
|
=item B |
|
558
|
|
|
|
|
|
|
|
|
559
|
|
|
|
|
|
|
Brief English description of the region, used to distinguish between |
|
560
|
|
|
|
|
|
|
the regions of a single country. Empty string if the country has only |
|
561
|
|
|
|
|
|
|
one region for timezone purposes. (This is the same string used as the |
|
562
|
|
|
|
|
|
|
key in the B hash.) |
|
563
|
|
|
|
|
|
|
|
|
564
|
|
|
|
|
|
|
=item B |
|
565
|
|
|
|
|
|
|
|
|
566
|
|
|
|
|
|
|
Name of the Olson timezone used in this region. The named timezone is |
|
567
|
|
|
|
|
|
|
guaranteed to exist in the database, but not necessarily as a canonical |
|
568
|
|
|
|
|
|
|
name (it may be a link). Typically, where there are aliases or identical |
|
569
|
|
|
|
|
|
|
canonical zones, a name is chosen that refers to a location in the |
|
570
|
|
|
|
|
|
|
country of interest. |
|
571
|
|
|
|
|
|
|
|
|
572
|
|
|
|
|
|
|
=item B |
|
573
|
|
|
|
|
|
|
|
|
574
|
|
|
|
|
|
|
Geographical coordinates of some point within the location referred to in |
|
575
|
|
|
|
|
|
|
the timezone name. This is a latitude and longitude, in ISO 6709 format. |
|
576
|
|
|
|
|
|
|
|
|
577
|
|
|
|
|
|
|
=back |
|
578
|
|
|
|
|
|
|
|
|
579
|
|
|
|
|
|
|
=back |
|
580
|
|
|
|
|
|
|
|
|
581
|
|
|
|
|
|
|
This data structure is intended to help a human select the appropriate |
|
582
|
|
|
|
|
|
|
timezone based on political geography, specifically working from a |
|
583
|
|
|
|
|
|
|
selection of country. It is of essentially no use for any other purpose. |
|
584
|
|
|
|
|
|
|
It is not strictly guaranteed that every geographical timezone in the |
|
585
|
|
|
|
|
|
|
database is listed somewhere in this structure, so it is of limited use |
|
586
|
|
|
|
|
|
|
in providing information about an already-selected timezone. It does |
|
587
|
|
|
|
|
|
|
not include non-geographic timezones at all. It also does not claim |
|
588
|
|
|
|
|
|
|
to be a comprehensive list of countries, and does not make any claims |
|
589
|
|
|
|
|
|
|
regarding the political status of any entity listed: the "country" |
|
590
|
|
|
|
|
|
|
classification is loose, and used only for identification purposes. |
|
591
|
|
|
|
|
|
|
|
|
592
|
|
|
|
|
|
|
=cut |
|
593
|
|
|
|
|
|
|
|
|
594
|
|
|
|
|
|
|
my $cs; |
|
595
|
|
|
|
|
|
|
sub olson_country_selection() { |
|
596
|
1
|
|
33
|
1
|
1
|
11
|
return $cs ||= do { |
|
597
|
1
|
|
|
|
|
5
|
my $fn = _data_file("country_selection.tzp"); |
|
598
|
1
|
0
|
|
|
|
3
|
$@ = ""; do($fn) || die($@ eq "" ? "$fn: $!" : $@); |
|
|
1
|
50
|
|
|
|
1085
|
|
|
599
|
|
|
|
|
|
|
} |
|
600
|
|
|
|
|
|
|
} |
|
601
|
|
|
|
|
|
|
|
|
602
|
|
|
|
|
|
|
=back |
|
603
|
|
|
|
|
|
|
|
|
604
|
|
|
|
|
|
|
=head2 Zone data |
|
605
|
|
|
|
|
|
|
|
|
606
|
|
|
|
|
|
|
=over |
|
607
|
|
|
|
|
|
|
|
|
608
|
|
|
|
|
|
|
=item olson_tzfile(NAME) |
|
609
|
|
|
|
|
|
|
|
|
610
|
|
|
|
|
|
|
Returns the pathname of the binary tzfile (in L format) |
|
611
|
|
|
|
|
|
|
describing the timezone named I in the Olson database. Cs if |
|
612
|
|
|
|
|
|
|
the name does not exist in this version of the database. The tzfile |
|
613
|
|
|
|
|
|
|
is of at least version 2 of the format, and so does not suffer a Y2038 |
|
614
|
|
|
|
|
|
|
(32-bit time_t) problem. |
|
615
|
|
|
|
|
|
|
|
|
616
|
|
|
|
|
|
|
=cut |
|
617
|
|
|
|
|
|
|
|
|
618
|
|
|
|
|
|
|
sub olson_tzfile($) { |
|
619
|
1199
|
|
|
1199
|
1
|
235220
|
my($tzname) = @_; |
|
620
|
1199
|
100
|
|
|
|
1912
|
$tzname = olson_links()->{$tzname} if exists olson_links()->{$tzname}; |
|
621
|
1199
|
100
|
|
|
|
1943
|
unless(exists olson_canonical_names()->{$tzname}) { |
|
622
|
3
|
|
|
|
|
24
|
require Carp; |
|
623
|
3
|
|
|
|
|
8
|
Carp::croak("no such timezone `$tzname' ". |
|
624
|
3
|
|
|
|
|
561
|
"in the Olson @{[olson_version]} database"); |
|
625
|
|
|
|
|
|
|
} |
|
626
|
1196
|
|
|
|
|
2441
|
return _data_file($tzname.".tz"); |
|
627
|
|
|
|
|
|
|
} |
|
628
|
|
|
|
|
|
|
|
|
629
|
|
|
|
|
|
|
=back |
|
630
|
|
|
|
|
|
|
|
|
631
|
|
|
|
|
|
|
=head1 BUGS |
|
632
|
|
|
|
|
|
|
|
|
633
|
|
|
|
|
|
|
The Olson timezone database probably contains errors in the older |
|
634
|
|
|
|
|
|
|
historical data. These will be corrected, as they are discovered, |
|
635
|
|
|
|
|
|
|
in future versions of the database. |
|
636
|
|
|
|
|
|
|
|
|
637
|
|
|
|
|
|
|
Because legislatures commonly change civil timezone rules, in |
|
638
|
|
|
|
|
|
|
unpredictable ways and often with little advance notice, the current |
|
639
|
|
|
|
|
|
|
timezone data is liable to get out of date quite quickly. The Olson |
|
640
|
|
|
|
|
|
|
timezone database is frequently updated to keep it accurate for current |
|
641
|
|
|
|
|
|
|
dates. Frequently updating installations of this module from CPAN should |
|
642
|
|
|
|
|
|
|
keep it similarly accurate. |
|
643
|
|
|
|
|
|
|
|
|
644
|
|
|
|
|
|
|
For the same reason, the future data in the database is liable to be |
|
645
|
|
|
|
|
|
|
very inaccurate. The database includes, for each timezone, the current |
|
646
|
|
|
|
|
|
|
best guess regarding its future behaviour, usually consisting of the |
|
647
|
|
|
|
|
|
|
current rules being left unchanged indefinitely. (In most cases it is |
|
648
|
|
|
|
|
|
|
unlikely that the rules will actually never be changed, but the current |
|
649
|
|
|
|
|
|
|
rules still constitute the best guess available of future behaviour.) |
|
650
|
|
|
|
|
|
|
|
|
651
|
|
|
|
|
|
|
Because this module is intended to be frequently updated, long-running |
|
652
|
|
|
|
|
|
|
programs (such as clock displays) will experience the module being |
|
653
|
|
|
|
|
|
|
updated while in use. This can happen with any module, but is of |
|
654
|
|
|
|
|
|
|
particular interest with this one. The behaviour in this situation is |
|
655
|
|
|
|
|
|
|
not guaranteed, but here is a guide to current behaviour. The running |
|
656
|
|
|
|
|
|
|
module code is of course not influenced by the C<.pm> file changing. |
|
657
|
|
|
|
|
|
|
The ancillary data is all currently stored in the module code, and so |
|
658
|
|
|
|
|
|
|
will be equally unaffected. Tzfiles pointed to by the module, however, |
|
659
|
|
|
|
|
|
|
will change visibly. Newly reading a tzfile is liable to see a newer |
|
660
|
|
|
|
|
|
|
version of the zone's data than the module's metadata suggests. A tzfile |
|
661
|
|
|
|
|
|
|
could also theoretically disappear, if a zone's canonical name changes |
|
662
|
|
|
|
|
|
|
(so the former canonical name becomes a link). To avoid weirdness, |
|
663
|
|
|
|
|
|
|
it is recommended to read in all required tzfiles near the start of |
|
664
|
|
|
|
|
|
|
a program's run, so that it doesn't matter if the files subsequently |
|
665
|
|
|
|
|
|
|
change due to an update. |
|
666
|
|
|
|
|
|
|
|
|
667
|
|
|
|
|
|
|
=head1 SEE ALSO |
|
668
|
|
|
|
|
|
|
|
|
669
|
|
|
|
|
|
|
L, |
|
670
|
|
|
|
|
|
|
L, |
|
671
|
|
|
|
|
|
|
L, |
|
672
|
|
|
|
|
|
|
L, |
|
673
|
|
|
|
|
|
|
L |
|
674
|
|
|
|
|
|
|
|
|
675
|
|
|
|
|
|
|
=head1 AUTHOR |
|
676
|
|
|
|
|
|
|
|
|
677
|
|
|
|
|
|
|
The Olson timezone database was compiled by Arthur David Olson, Paul |
|
678
|
|
|
|
|
|
|
Eggert, and many others. It is maintained by the denizens of the mailing |
|
679
|
|
|
|
|
|
|
list (formerly ). |
|
680
|
|
|
|
|
|
|
|
|
681
|
|
|
|
|
|
|
The C Perl module wrapper for the database was |
|
682
|
|
|
|
|
|
|
developed by Andrew Main (Zefram) . |
|
683
|
|
|
|
|
|
|
|
|
684
|
|
|
|
|
|
|
=head1 COPYRIGHT |
|
685
|
|
|
|
|
|
|
|
|
686
|
|
|
|
|
|
|
The Olson timezone database is is the public domain. |
|
687
|
|
|
|
|
|
|
|
|
688
|
|
|
|
|
|
|
The C Perl module wrapper for the database is |
|
689
|
|
|
|
|
|
|
Copyright (C) 2010, 2011, 2012, 2013, 2014, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
|
690
|
|
|
|
|
|
|
Andrew Main (Zefram) . |
|
691
|
|
|
|
|
|
|
|
|
692
|
|
|
|
|
|
|
=head1 LICENSE |
|
693
|
|
|
|
|
|
|
|
|
694
|
|
|
|
|
|
|
No license is required to do anything with public domain materials. |
|
695
|
|
|
|
|
|
|
|
|
696
|
|
|
|
|
|
|
This module is free software; you can redistribute it and/or modify it |
|
697
|
|
|
|
|
|
|
under the same terms as Perl itself. |
|
698
|
|
|
|
|
|
|
|
|
699
|
|
|
|
|
|
|
=cut |
|
700
|
|
|
|
|
|
|
|
|
701
|
|
|
|
|
|
|
1; |