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1 <?php
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2
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3 namespace Sabre\VObject;
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4
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5 /**
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6 * Time zone name translation
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7 *
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8 * This file translates well-known time zone names into "Olson database" time zone names.
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9 *
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10 * @copyright Copyright (C) 2007-2013 fruux GmbH (https://fruux.com/).
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11 * @author Frank Edelhaeuser (fedel@users.sourceforge.net)
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12 * @author Evert Pot (http://evertpot.com/)
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13 * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
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14 */
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15 class TimeZoneUtil {
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16
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17 public static $map = array(
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18
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19 // from http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/zone_tzid.html
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20 // snapshot taken on 2012/01/16
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21
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22 // windows
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23 'AUS Central Standard Time'=>'Australia/Darwin',
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24 'AUS Eastern Standard Time'=>'Australia/Sydney',
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25 'Afghanistan Standard Time'=>'Asia/Kabul',
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26 'Alaskan Standard Time'=>'America/Anchorage',
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27 'Arab Standard Time'=>'Asia/Riyadh',
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28 'Arabian Standard Time'=>'Asia/Dubai',
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29 'Arabic Standard Time'=>'Asia/Baghdad',
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30 'Argentina Standard Time'=>'America/Buenos_Aires',
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31 'Armenian Standard Time'=>'Asia/Yerevan',
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32 'Atlantic Standard Time'=>'America/Halifax',
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33 'Azerbaijan Standard Time'=>'Asia/Baku',
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34 'Azores Standard Time'=>'Atlantic/Azores',
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35 'Bangladesh Standard Time'=>'Asia/Dhaka',
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36 'Canada Central Standard Time'=>'America/Regina',
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37 'Cape Verde Standard Time'=>'Atlantic/Cape_Verde',
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38 'Caucasus Standard Time'=>'Asia/Yerevan',
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39 'Cen. Australia Standard Time'=>'Australia/Adelaide',
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40 'Central America Standard Time'=>'America/Guatemala',
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41 'Central Asia Standard Time'=>'Asia/Almaty',
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42 'Central Brazilian Standard Time'=>'America/Cuiaba',
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43 'Central Europe Standard Time'=>'Europe/Budapest',
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44 'Central European Standard Time'=>'Europe/Warsaw',
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45 'Central Pacific Standard Time'=>'Pacific/Guadalcanal',
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46 'Central Standard Time'=>'America/Chicago',
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47 'Central Standard Time (Mexico)'=>'America/Mexico_City',
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48 'China Standard Time'=>'Asia/Shanghai',
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49 'Dateline Standard Time'=>'Etc/GMT+12',
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50 'E. Africa Standard Time'=>'Africa/Nairobi',
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51 'E. Australia Standard Time'=>'Australia/Brisbane',
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52 'E. Europe Standard Time'=>'Europe/Minsk',
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53 'E. South America Standard Time'=>'America/Sao_Paulo',
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54 'Eastern Standard Time'=>'America/New_York',
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55 'Egypt Standard Time'=>'Africa/Cairo',
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56 'Ekaterinburg Standard Time'=>'Asia/Yekaterinburg',
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57 'FLE Standard Time'=>'Europe/Kiev',
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58 'Fiji Standard Time'=>'Pacific/Fiji',
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59 'GMT Standard Time'=>'Europe/London',
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60 'GTB Standard Time'=>'Europe/Istanbul',
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61 'Georgian Standard Time'=>'Asia/Tbilisi',
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62 'Greenland Standard Time'=>'America/Godthab',
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63 'Greenwich Standard Time'=>'Atlantic/Reykjavik',
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64 'Hawaiian Standard Time'=>'Pacific/Honolulu',
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65 'India Standard Time'=>'Asia/Calcutta',
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66 'Iran Standard Time'=>'Asia/Tehran',
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67 'Israel Standard Time'=>'Asia/Jerusalem',
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68 'Jordan Standard Time'=>'Asia/Amman',
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69 'Kamchatka Standard Time'=>'Asia/Kamchatka',
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70 'Korea Standard Time'=>'Asia/Seoul',
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71 'Magadan Standard Time'=>'Asia/Magadan',
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72 'Mauritius Standard Time'=>'Indian/Mauritius',
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73 'Mexico Standard Time'=>'America/Mexico_City',
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74 'Mexico Standard Time 2'=>'America/Chihuahua',
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75 'Mid-Atlantic Standard Time'=>'Etc/GMT-2',
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76 'Middle East Standard Time'=>'Asia/Beirut',
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77 'Montevideo Standard Time'=>'America/Montevideo',
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78 'Morocco Standard Time'=>'Africa/Casablanca',
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79 'Mountain Standard Time'=>'America/Denver',
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80 'Mountain Standard Time (Mexico)'=>'America/Chihuahua',
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81 'Myanmar Standard Time'=>'Asia/Rangoon',
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82 'N. Central Asia Standard Time'=>'Asia/Novosibirsk',
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83 'Namibia Standard Time'=>'Africa/Windhoek',
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84 'Nepal Standard Time'=>'Asia/Katmandu',
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85 'New Zealand Standard Time'=>'Pacific/Auckland',
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86 'Newfoundland Standard Time'=>'America/St_Johns',
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87 'North Asia East Standard Time'=>'Asia/Irkutsk',
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88 'North Asia Standard Time'=>'Asia/Krasnoyarsk',
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89 'Pacific SA Standard Time'=>'America/Santiago',
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90 'Pacific Standard Time'=>'America/Los_Angeles',
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91 'Pacific Standard Time (Mexico)'=>'America/Santa_Isabel',
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92 'Pakistan Standard Time'=>'Asia/Karachi',
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93 'Paraguay Standard Time'=>'America/Asuncion',
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94 'Romance Standard Time'=>'Europe/Paris',
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95 'Russian Standard Time'=>'Europe/Moscow',
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96 'SA Eastern Standard Time'=>'America/Cayenne',
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97 'SA Pacific Standard Time'=>'America/Bogota',
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98 'SA Western Standard Time'=>'America/La_Paz',
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99 'SE Asia Standard Time'=>'Asia/Bangkok',
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100 'Samoa Standard Time'=>'Pacific/Apia',
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101 'Singapore Standard Time'=>'Asia/Singapore',
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102 'South Africa Standard Time'=>'Africa/Johannesburg',
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103 'Sri Lanka Standard Time'=>'Asia/Colombo',
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104 'Syria Standard Time'=>'Asia/Damascus',
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105 'Taipei Standard Time'=>'Asia/Taipei',
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106 'Tasmania Standard Time'=>'Australia/Hobart',
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107 'Tokyo Standard Time'=>'Asia/Tokyo',
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108 'Tonga Standard Time'=>'Pacific/Tongatapu',
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109 'US Eastern Standard Time'=>'America/Indianapolis',
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110 'US Mountain Standard Time'=>'America/Phoenix',
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111 'UTC+12'=>'Etc/GMT-12',
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112 'UTC-02'=>'Etc/GMT+2',
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113 'UTC-11'=>'Etc/GMT+11',
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114 'Ulaanbaatar Standard Time'=>'Asia/Ulaanbaatar',
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115 'Venezuela Standard Time'=>'America/Caracas',
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116 'Vladivostok Standard Time'=>'Asia/Vladivostok',
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117 'W. Australia Standard Time'=>'Australia/Perth',
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118 'W. Central Africa Standard Time'=>'Africa/Lagos',
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119 'W. Europe Standard Time'=>'Europe/Berlin',
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120 'West Asia Standard Time'=>'Asia/Tashkent',
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121 'West Pacific Standard Time'=>'Pacific/Port_Moresby',
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122 'Yakutsk Standard Time'=>'Asia/Yakutsk',
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123
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124 // Microsoft exchange timezones
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125 // Source:
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126 // http://msdn.microsoft.com/en-us/library/ms988620%28v=exchg.65%29.aspx
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127 //
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128 // Correct timezones deduced with help from:
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129 // http://en.wikipedia.org/wiki/List_of_tz_database_time_zones
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130 'Universal Coordinated Time' => 'UTC',
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131 'Casablanca, Monrovia' => 'Africa/Casablanca',
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132 'Greenwich Mean Time: Dublin, Edinburgh, Lisbon, London' => 'Europe/Lisbon',
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133 'Greenwich Mean Time; Dublin, Edinburgh, London' => 'Europe/London',
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134 'Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna' => 'Europe/Berlin',
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135 'Belgrade, Pozsony, Budapest, Ljubljana, Prague' => 'Europe/Prague',
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136 'Brussels, Copenhagen, Madrid, Paris' => 'Europe/Paris',
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137 'Paris, Madrid, Brussels, Copenhagen' => 'Europe/Paris',
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138 'Prague, Central Europe' => 'Europe/Prague',
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139 'Sarajevo, Skopje, Sofija, Vilnius, Warsaw, Zagreb' => 'Europe/Sarajevo',
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140 'West Central Africa' => 'Africa/Luanda', // This was a best guess
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141 'Athens, Istanbul, Minsk' => 'Europe/Athens',
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142 'Bucharest' => 'Europe/Bucharest',
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143 'Cairo' => 'Africa/Cairo',
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144 'Harare, Pretoria' => 'Africa/Harare',
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145 'Helsinki, Riga, Tallinn' => 'Europe/Helsinki',
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146 'Israel, Jerusalem Standard Time' => 'Asia/Jerusalem',
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147 'Baghdad' => 'Asia/Baghdad',
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148 'Arab, Kuwait, Riyadh' => 'Asia/Kuwait',
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149 'Moscow, St. Petersburg, Volgograd' => 'Europe/Moscow',
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150 'East Africa, Nairobi' => 'Africa/Nairobi',
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151 'Tehran' => 'Asia/Tehran',
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152 'Abu Dhabi, Muscat' => 'Asia/Muscat', // Best guess
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153 'Baku, Tbilisi, Yerevan' => 'Asia/Baku',
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154 'Kabul' => 'Asia/Kabul',
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155 'Ekaterinburg' => 'Asia/Yekaterinburg',
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156 'Islamabad, Karachi, Tashkent' => 'Asia/Karachi',
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157 'Kolkata, Chennai, Mumbai, New Delhi, India Standard Time' => 'Asia/Calcutta',
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158 'Kathmandu, Nepal' => 'Asia/Kathmandu',
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159 'Almaty, Novosibirsk, North Central Asia' => 'Asia/Almaty',
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160 'Astana, Dhaka' => 'Asia/Dhaka',
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161 'Sri Jayawardenepura, Sri Lanka' => 'Asia/Colombo',
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162 'Rangoon' => 'Asia/Rangoon',
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163 'Bangkok, Hanoi, Jakarta' => 'Asia/Bangkok',
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164 'Krasnoyarsk' => 'Asia/Krasnoyarsk',
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165 'Beijing, Chongqing, Hong Kong SAR, Urumqi' => 'Asia/Shanghai',
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166 'Irkutsk, Ulaan Bataar' => 'Asia/Irkutsk',
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167 'Kuala Lumpur, Singapore' => 'Asia/Singapore',
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168 'Perth, Western Australia' => 'Australia/Perth',
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169 'Taipei' => 'Asia/Taipei',
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170 'Osaka, Sapporo, Tokyo' => 'Asia/Tokyo',
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171 'Seoul, Korea Standard time' => 'Asia/Seoul',
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172 'Yakutsk' => 'Asia/Yakutsk',
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173 'Adelaide, Central Australia' => 'Australia/Adelaide',
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174 'Darwin' => 'Australia/Darwin',
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175 'Brisbane, East Australia' => 'Australia/Brisbane',
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176 'Canberra, Melbourne, Sydney, Hobart (year 2000 only)' => 'Australia/Sydney',
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177 'Guam, Port Moresby' => 'Pacific/Guam',
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178 'Hobart, Tasmania' => 'Australia/Hobart',
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179 'Vladivostok' => 'Asia/Vladivostok',
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180 'Magadan, Solomon Is., New Caledonia' => 'Asia/Magadan',
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181 'Auckland, Wellington' => 'Pacific/Auckland',
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182 'Fiji Islands, Kamchatka, Marshall Is.' => 'Pacific/Fiji',
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183 'Nuku\'alofa, Tonga' => 'Pacific/Tongatapu',
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184 'Azores' => 'Atlantic/Azores',
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185 'Cape Verde Is.' => 'Atlantic/Cape_Verde',
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186 'Mid-Atlantic' => 'America/Noronha',
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187 'Brasilia' => 'America/Sao_Paulo', // Best guess
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188 'Buenos Aires' => 'America/Argentina/Buenos_Aires',
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189 'Greenland' => 'America/Godthab',
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190 'Newfoundland' => 'America/St_Johns',
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191 'Atlantic Time (Canada)' => 'America/Halifax',
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192 'Caracas, La Paz' => 'America/Caracas',
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193 'Santiago' => 'America/Santiago',
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194 'Bogota, Lima, Quito' => 'America/Bogota',
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195 'Eastern Time (US & Canada)' => 'America/New_York',
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196 'Indiana (East)' => 'America/Indiana/Indianapolis',
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197 'Central America' => 'America/Guatemala',
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198 'Central Time (US & Canada)' => 'America/Chicago',
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199 'Mexico City, Tegucigalpa' => 'America/Mexico_City',
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200 'Saskatchewan' => 'America/Edmonton',
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201 'Arizona' => 'America/Phoenix',
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202 'Mountain Time (US & Canada)' => 'America/Denver', // Best guess
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203 'Pacific Time (US & Canada); Tijuana' => 'America/Los_Angeles', // Best guess
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204 'Alaska' => 'America/Anchorage',
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205 'Hawaii' => 'Pacific/Honolulu',
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206 'Midway Island, Samoa' => 'Pacific/Midway',
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207 'Eniwetok, Kwajalein, Dateline Time' => 'Pacific/Kwajalein',
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208
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209 // The following list are timezone names that could be generated by
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210 // Lotus / Domino
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211 'Dateline' => 'Etc/GMT-12',
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212 'Samoa' => 'Pacific/Apia',
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213 'Hawaiian' => 'Pacific/Honolulu',
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214 'Alaskan' => 'America/Anchorage',
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215 'Pacific' => 'America/Los_Angeles',
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216 'Pacific Standard Time' => 'America/Los_Angeles',
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217 'Mexico Standard Time 2' => 'America/Chihuahua',
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218 'Mountain' => 'America/Denver',
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219 'Mountain Standard Time' => 'America/Chihuahua',
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220 'US Mountain' => 'America/Phoenix',
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221 'Canada Central' => 'America/Edmonton',
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222 'Central America' => 'America/Guatemala',
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223 'Central' => 'America/Chicago',
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224 'Central Standard Time' => 'America/Mexico_City',
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225 'Mexico' => 'America/Mexico_City',
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226 'Eastern' => 'America/New_York',
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227 'SA Pacific' => 'America/Bogota',
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228 'US Eastern' => 'America/Indiana/Indianapolis',
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229 'Venezuela' => 'America/Caracas',
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230 'Atlantic' => 'America/Halifax',
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231 'Central Brazilian' => 'America/Manaus',
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232 'Pacific SA' => 'America/Santiago',
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233 'SA Western' => 'America/La_Paz',
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234 'Newfoundland' => 'America/St_Johns',
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235 'Argentina' => 'America/Argentina/Buenos_Aires',
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236 'E. South America' => 'America/Belem',
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237 'Greenland' => 'America/Godthab',
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238 'Montevideo' => 'America/Montevideo',
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239 'SA Eastern' => 'America/Belem',
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240 'Mid-Atlantic' => 'Etc/GMT-2',
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241 'Azores' => 'Atlantic/Azores',
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242 'Cape Verde' => 'Atlantic/Cape_Verde',
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243 'Greenwich' => 'Atlantic/Reykjavik', // No I'm serious.. Greenwich is not GMT.
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244 'Morocco' => 'Africa/Casablanca',
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245 'Central Europe' => 'Europe/Prague',
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246 'Central European' => 'Europe/Sarajevo',
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247 'Romance' => 'Europe/Paris',
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248 'W. Central Africa' => 'Africa/Lagos', // Best guess
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249 'W. Europe' => 'Europe/Amsterdam',
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250 'E. Europe' => 'Europe/Minsk',
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251 'Egypt' => 'Africa/Cairo',
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252 'FLE' => 'Europe/Helsinki',
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253 'GTB' => 'Europe/Athens',
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254 'Israel' => 'Asia/Jerusalem',
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255 'Jordan' => 'Asia/Amman',
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256 'Middle East' => 'Asia/Beirut',
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257 'Namibia' => 'Africa/Windhoek',
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258 'South Africa' => 'Africa/Harare',
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259 'Arab' => 'Asia/Kuwait',
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260 'Arabic' => 'Asia/Baghdad',
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261 'E. Africa' => 'Africa/Nairobi',
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262 'Georgian' => 'Asia/Tbilisi',
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263 'Russian' => 'Europe/Moscow',
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264 'Iran' => 'Asia/Tehran',
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265 'Arabian' => 'Asia/Muscat',
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266 'Armenian' => 'Asia/Yerevan',
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267 'Azerbijan' => 'Asia/Baku',
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268 'Caucasus' => 'Asia/Yerevan',
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269 'Mauritius' => 'Indian/Mauritius',
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270 'Afghanistan' => 'Asia/Kabul',
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271 'Ekaterinburg' => 'Asia/Yekaterinburg',
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272 'Pakistan' => 'Asia/Karachi',
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273 'West Asia' => 'Asia/Tashkent',
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274 'India' => 'Asia/Calcutta',
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275 'Sri Lanka' => 'Asia/Colombo',
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276 'Nepal' => 'Asia/Kathmandu',
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277 'Central Asia' => 'Asia/Dhaka',
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278 'N. Central Asia' => 'Asia/Almaty',
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279 'Myanmar' => 'Asia/Rangoon',
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280 'North Asia' => 'Asia/Krasnoyarsk',
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281 'SE Asia' => 'Asia/Bangkok',
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282 'China' => 'Asia/Shanghai',
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283 'North Asia East' => 'Asia/Irkutsk',
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284 'Singapore' => 'Asia/Singapore',
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285 'Taipei' => 'Asia/Taipei',
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286 'W. Australia' => 'Australia/Perth',
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287 'Korea' => 'Asia/Seoul',
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288 'Tokyo' => 'Asia/Tokyo',
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289 'Yakutsk' => 'Asia/Yakutsk',
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290 'AUS Central' => 'Australia/Darwin',
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291 'Cen. Australia' => 'Australia/Adelaide',
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292 'AUS Eastern' => 'Australia/Sydney',
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293 'E. Australia' => 'Australia/Brisbane',
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294 'Tasmania' => 'Australia/Hobart',
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295 'Vladivostok' => 'Asia/Vladivostok',
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296 'West Pacific' => 'Pacific/Guam',
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297 'Central Pacific' => 'Asia/Magadan',
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298 'Fiji' => 'Pacific/Fiji',
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299 'New Zealand' => 'Pacific/Auckland',
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300 'Tonga' => 'Pacific/Tongatapu',
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301 );
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302
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303 /**
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304 * List of microsoft exchange timezone ids.
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305 *
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306 * Source: http://msdn.microsoft.com/en-us/library/aa563018(loband).aspx
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307 */
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308 public static $microsoftExchangeMap = array(
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309 0 => 'UTC',
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310 31 => 'Africa/Casablanca',
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311
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312 // Insanely, id #2 is used for both Europe/Lisbon, and Europe/Sarajevo.
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313 // I'm not even kidding.. We handle this special case in the
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314 // getTimeZone method.
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315 2 => 'Europe/Lisbon',
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316 1 => 'Europe/London',
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317 4 => 'Europe/Berlin',
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318 6 => 'Europe/Prague',
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319 3 => 'Europe/Paris',
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320 69 => 'Africa/Luanda', // This was a best guess
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321 7 => 'Europe/Athens',
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322 5 => 'Europe/Bucharest',
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323 49 => 'Africa/Cairo',
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324 50 => 'Africa/Harare',
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325 59 => 'Europe/Helsinki',
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326 27 => 'Asia/Jerusalem',
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327 26 => 'Asia/Baghdad',
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328 74 => 'Asia/Kuwait',
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329 51 => 'Europe/Moscow',
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330 56 => 'Africa/Nairobi',
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331 25 => 'Asia/Tehran',
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332 24 => 'Asia/Muscat', // Best guess
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333 54 => 'Asia/Baku',
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334 48 => 'Asia/Kabul',
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335 58 => 'Asia/Yekaterinburg',
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336 47 => 'Asia/Karachi',
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337 23 => 'Asia/Calcutta',
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338 62 => 'Asia/Kathmandu',
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339 46 => 'Asia/Almaty',
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340 71 => 'Asia/Dhaka',
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341 66 => 'Asia/Colombo',
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342 61 => 'Asia/Rangoon',
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343 22 => 'Asia/Bangkok',
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344 64 => 'Asia/Krasnoyarsk',
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345 45 => 'Asia/Shanghai',
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346 63 => 'Asia/Irkutsk',
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347 21 => 'Asia/Singapore',
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348 73 => 'Australia/Perth',
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349 75 => 'Asia/Taipei',
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350 20 => 'Asia/Tokyo',
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351 72 => 'Asia/Seoul',
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352 70 => 'Asia/Yakutsk',
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353 19 => 'Australia/Adelaide',
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354 44 => 'Australia/Darwin',
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355 18 => 'Australia/Brisbane',
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356 76 => 'Australia/Sydney',
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357 43 => 'Pacific/Guam',
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358 42 => 'Australia/Hobart',
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359 68 => 'Asia/Vladivostok',
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360 41 => 'Asia/Magadan',
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361 17 => 'Pacific/Auckland',
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362 40 => 'Pacific/Fiji',
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363 67 => 'Pacific/Tongatapu',
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364 29 => 'Atlantic/Azores',
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365 53 => 'Atlantic/Cape_Verde',
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366 30 => 'America/Noronha',
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367 8 => 'America/Sao_Paulo', // Best guess
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368 32 => 'America/Argentina/Buenos_Aires',
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369 60 => 'America/Godthab',
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370 28 => 'America/St_Johns',
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371 9 => 'America/Halifax',
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372 33 => 'America/Caracas',
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|
373 65 => 'America/Santiago',
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|
374 35 => 'America/Bogota',
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|
375 10 => 'America/New_York',
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|
376 34 => 'America/Indiana/Indianapolis',
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|
377 55 => 'America/Guatemala',
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|
378 11 => 'America/Chicago',
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379 37 => 'America/Mexico_City',
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|
380 36 => 'America/Edmonton',
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|
381 38 => 'America/Phoenix',
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|
382 12 => 'America/Denver', // Best guess
|
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383 13 => 'America/Los_Angeles', // Best guess
|
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|
384 14 => 'America/Anchorage',
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|
385 15 => 'Pacific/Honolulu',
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|
386 16 => 'Pacific/Midway',
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|
|
387 39 => 'Pacific/Kwajalein',
|
|
|
388 );
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389
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390 /**
|
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|
391 * This method will try to find out the correct timezone for an iCalendar
|
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392 * date-time value.
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393 *
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|
394 * You must pass the contents of the TZID parameter, as well as the full
|
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395 * calendar.
|
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396 *
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|
|
397 * If the lookup fails, this method will return the default PHP timezone
|
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|
398 * (as configured using date_default_timezone_set, or the date.timezone ini
|
|
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399 * setting).
|
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|
400 *
|
|
|
401 * Alternatively, if $failIfUncertain is set to true, it will throw an
|
|
|
402 * exception if we cannot accurately determine the timezone.
|
|
|
403 *
|
|
|
404 * @param string $tzid
|
|
|
405 * @param Sabre\VObject\Component $vcalendar
|
|
|
406 * @return DateTimeZone
|
|
|
407 */
|
|
|
408 static public function getTimeZone($tzid, Component $vcalendar = null, $failIfUncertain = false) {
|
|
|
409
|
|
|
410 // First we will just see if the tzid is a support timezone identifier.
|
|
|
411 try {
|
|
|
412 return new \DateTimeZone($tzid);
|
|
|
413 } catch (\Exception $e) {
|
|
|
414 }
|
|
|
415
|
|
|
416 // Next, we check if the tzid is somewhere in our tzid map.
|
|
|
417 if (isset(self::$map[$tzid])) {
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|
|
418 return new \DateTimeZone(self::$map[$tzid]);
|
|
|
419 }
|
|
|
420
|
|
|
421 // Maybe the author was hyper-lazy and just included an offset. We
|
|
|
422 // support it, but we aren't happy about it.
|
|
|
423 if (preg_match('/^GMT(\+|-)([0-9]{4})$/', $tzid, $matches)) {
|
|
|
424 return new \DateTimeZone('Etc/GMT' . $matches[1] . ltrim(substr($matches[2],0,2),'0'));
|
|
|
425 }
|
|
|
426
|
|
|
427 if ($vcalendar) {
|
|
|
428
|
|
|
429 // If that didn't work, we will scan VTIMEZONE objects
|
|
|
430 foreach($vcalendar->select('VTIMEZONE') as $vtimezone) {
|
|
|
431
|
|
|
432 if ((string)$vtimezone->TZID === $tzid) {
|
|
|
433
|
|
|
434 // Some clients add 'X-LIC-LOCATION' with the olson name.
|
|
|
435 if (isset($vtimezone->{'X-LIC-LOCATION'})) {
|
|
|
436
|
|
|
437 $lic = (string)$vtimezone->{'X-LIC-LOCATION'};
|
|
|
438
|
|
|
439 // Libical generators may specify strings like
|
|
|
440 // "SystemV/EST5EDT". For those we must remove the
|
|
|
441 // SystemV part.
|
|
|
442 if (substr($lic,0,8)==='SystemV/') {
|
|
|
443 $lic = substr($lic,8);
|
|
|
444 }
|
|
|
445
|
|
|
446 try {
|
|
|
447 return new \DateTimeZone($lic);
|
|
|
448 } catch (\Exception $e) {
|
|
|
449 }
|
|
|
450
|
|
|
451 }
|
|
|
452 // Microsoft may add a magic number, which we also have an
|
|
|
453 // answer for.
|
|
|
454 if (isset($vtimezone->{'X-MICROSOFT-CDO-TZID'})) {
|
|
|
455 $cdoId = (int)$vtimezone->{'X-MICROSOFT-CDO-TZID'}->value;
|
|
|
456
|
|
|
457 // 2 can mean both Europe/Lisbon and Europe/Sarajevo.
|
|
|
458 if ($cdoId===2 && strpos((string)$vtimezone->TZID, 'Sarajevo')!==false) {
|
|
|
459 return new \DateTimeZone('Europe/Sarajevo');
|
|
|
460 }
|
|
|
461
|
|
|
462 if (isset(self::$microsoftExchangeMap[$cdoId])) {
|
|
|
463 return new \DateTimeZone(self::$microsoftExchangeMap[$cdoId]);
|
|
|
464 }
|
|
|
465 }
|
|
|
466
|
|
|
467 }
|
|
|
468
|
|
|
469 }
|
|
|
470
|
|
|
471 }
|
|
|
472
|
|
|
473 if ($failIfUncertain) {
|
|
|
474 throw new \InvalidArgumentException('We were unable to determine the correct PHP timezone for tzid: ' . $tzid);
|
|
|
475 }
|
|
|
476
|
|
|
477 // If we got all the way here, we default to UTC.
|
|
|
478 return new \DateTimeZone(date_default_timezone_get());
|
|
|
479
|
|
|
480 }
|
|
|
481
|
|
|
482 }
|
