--- /dev/null
+diff --git a/pytz/__init__.py b/pytz/__init__.py
+index e2f49fa..65c1d11 100644
+--- a/pytz/__init__.py
++++ b/pytz/__init__.py
+@@ -74,6 +74,9 @@ else: # Python 2.x
+ """
+ return s.encode('ASCII')
+
++_tzinfo_dir = os.getenv('PYTZ_TZDATADIR') or '/usr/share/zoneinfo'
++if _tzinfo_dir.endswith(os.sep):
++ _tzinfo_dir = _tzinfo_dir[:-1]
+
+ def open_resource(name):
+ """Open a resource from the zoneinfo subdir for reading.
+--- pytz-2022.2/pytz/__init__.py~ 2022-08-12 08:18:18.284242046 -0500
++++ pytz-2022.2/pytz/__init__.py 2022-08-12 08:40:34.523880888 -0500
+@@ -91,23 +91,8 @@
+ for part in name_parts:
+ if part == os.path.pardir or os.sep in part:
+ raise ValueError('Bad path segment: %r' % part)
+- zoneinfo_dir = os.environ.get('PYTZ_TZDATADIR', None)
+- if zoneinfo_dir is not None:
+- filename = os.path.join(zoneinfo_dir, *name_parts)
+- else:
+- filename = os.path.join(os.path.dirname(__file__),
+- 'zoneinfo', *name_parts)
+- if not os.path.exists(filename):
+- # http://bugs.launchpad.net/bugs/383171 - we avoid using this
+- # unless absolutely necessary to help when a broken version of
+- # pkg_resources is installed.
+- try:
+- from pkg_resources import resource_stream
+- except ImportError:
+- resource_stream = None
+-
+- if resource_stream is not None:
+- return resource_stream(__name__, 'zoneinfo/' + name)
++ zoneinfo_dir = os.environ.get('PYTZ_TZDATADIR', _tzinfo_dir)
++ filename = os.path.join(zoneinfo_dir, *name_parts)
+ return open(filename, 'rb')
+
+
+505,1100c505,515
+< all_timezones = \
+< ['Africa/Abidjan',
+< 'Africa/Accra',
+< 'Africa/Addis_Ababa',
+< 'Africa/Algiers',
+< 'Africa/Asmara',
+< 'Africa/Asmera',
+< 'Africa/Bamako',
+< 'Africa/Bangui',
+< 'Africa/Banjul',
+< 'Africa/Bissau',
+< 'Africa/Blantyre',
+< 'Africa/Brazzaville',
+< 'Africa/Bujumbura',
+< 'Africa/Cairo',
+< 'Africa/Casablanca',
+< 'Africa/Ceuta',
+< 'Africa/Conakry',
+< 'Africa/Dakar',
+< 'Africa/Dar_es_Salaam',
+< 'Africa/Djibouti',
+< 'Africa/Douala',
+< 'Africa/El_Aaiun',
+< 'Africa/Freetown',
+< 'Africa/Gaborone',
+< 'Africa/Harare',
+< 'Africa/Johannesburg',
+< 'Africa/Juba',
+< 'Africa/Kampala',
+< 'Africa/Khartoum',
+< 'Africa/Kigali',
+< 'Africa/Kinshasa',
+< 'Africa/Lagos',
+< 'Africa/Libreville',
+< 'Africa/Lome',
+< 'Africa/Luanda',
+< 'Africa/Lubumbashi',
+< 'Africa/Lusaka',
+< 'Africa/Malabo',
+< 'Africa/Maputo',
+< 'Africa/Maseru',
+< 'Africa/Mbabane',
+< 'Africa/Mogadishu',
+< 'Africa/Monrovia',
+< 'Africa/Nairobi',
+< 'Africa/Ndjamena',
+< 'Africa/Niamey',
+< 'Africa/Nouakchott',
+< 'Africa/Ouagadougou',
+< 'Africa/Porto-Novo',
+< 'Africa/Sao_Tome',
+< 'Africa/Timbuktu',
+< 'Africa/Tripoli',
+< 'Africa/Tunis',
+< 'Africa/Windhoek',
+< 'America/Adak',
+< 'America/Anchorage',
+< 'America/Anguilla',
+< 'America/Antigua',
+< 'America/Araguaina',
+< 'America/Argentina/Buenos_Aires',
+< 'America/Argentina/Catamarca',
+< 'America/Argentina/ComodRivadavia',
+< 'America/Argentina/Cordoba',
+< 'America/Argentina/Jujuy',
+< 'America/Argentina/La_Rioja',
+< 'America/Argentina/Mendoza',
+< 'America/Argentina/Rio_Gallegos',
+< 'America/Argentina/Salta',
+< 'America/Argentina/San_Juan',
+< 'America/Argentina/San_Luis',
+< 'America/Argentina/Tucuman',
+< 'America/Argentina/Ushuaia',
+< 'America/Aruba',
+< 'America/Asuncion',
+< 'America/Atikokan',
+< 'America/Atka',
+< 'America/Bahia',
+< 'America/Bahia_Banderas',
+< 'America/Barbados',
+< 'America/Belem',
+< 'America/Belize',
+< 'America/Blanc-Sablon',
+< 'America/Boa_Vista',
+< 'America/Bogota',
+< 'America/Boise',
+< 'America/Buenos_Aires',
+< 'America/Cambridge_Bay',
+< 'America/Campo_Grande',
+< 'America/Cancun',
+< 'America/Caracas',
+< 'America/Catamarca',
+< 'America/Cayenne',
+< 'America/Cayman',
+< 'America/Chicago',
+< 'America/Chihuahua',
+< 'America/Coral_Harbour',
+< 'America/Cordoba',
+< 'America/Costa_Rica',
+< 'America/Creston',
+< 'America/Cuiaba',
+< 'America/Curacao',
+< 'America/Danmarkshavn',
+< 'America/Dawson',
+< 'America/Dawson_Creek',
+< 'America/Denver',
+< 'America/Detroit',
+< 'America/Dominica',
+< 'America/Edmonton',
+< 'America/Eirunepe',
+< 'America/El_Salvador',
+< 'America/Ensenada',
+< 'America/Fort_Nelson',
+< 'America/Fort_Wayne',
+< 'America/Fortaleza',
+< 'America/Glace_Bay',
+< 'America/Godthab',
+< 'America/Goose_Bay',
+< 'America/Grand_Turk',
+< 'America/Grenada',
+< 'America/Guadeloupe',
+< 'America/Guatemala',
+< 'America/Guayaquil',
+< 'America/Guyana',
+< 'America/Halifax',
+< 'America/Havana',
+< 'America/Hermosillo',
+< 'America/Indiana/Indianapolis',
+< 'America/Indiana/Knox',
+< 'America/Indiana/Marengo',
+< 'America/Indiana/Petersburg',
+< 'America/Indiana/Tell_City',
+< 'America/Indiana/Vevay',
+< 'America/Indiana/Vincennes',
+< 'America/Indiana/Winamac',
+< 'America/Indianapolis',
+< 'America/Inuvik',
+< 'America/Iqaluit',
+< 'America/Jamaica',
+< 'America/Jujuy',
+< 'America/Juneau',
+< 'America/Kentucky/Louisville',
+< 'America/Kentucky/Monticello',
+< 'America/Knox_IN',
+< 'America/Kralendijk',
+< 'America/La_Paz',
+< 'America/Lima',
+< 'America/Los_Angeles',
+< 'America/Louisville',
+< 'America/Lower_Princes',
+< 'America/Maceio',
+< 'America/Managua',
+< 'America/Manaus',
+< 'America/Marigot',
+< 'America/Martinique',
+< 'America/Matamoros',
+< 'America/Mazatlan',
+< 'America/Mendoza',
+< 'America/Menominee',
+< 'America/Merida',
+< 'America/Metlakatla',
+< 'America/Mexico_City',
+< 'America/Miquelon',
+< 'America/Moncton',
+< 'America/Monterrey',
+< 'America/Montevideo',
+< 'America/Montreal',
+< 'America/Montserrat',
+< 'America/Nassau',
+< 'America/New_York',
+< 'America/Nipigon',
+< 'America/Nome',
+< 'America/Noronha',
+< 'America/North_Dakota/Beulah',
+< 'America/North_Dakota/Center',
+< 'America/North_Dakota/New_Salem',
+< 'America/Nuuk',
+< 'America/Ojinaga',
+< 'America/Panama',
+< 'America/Pangnirtung',
+< 'America/Paramaribo',
+< 'America/Phoenix',
+< 'America/Port-au-Prince',
+< 'America/Port_of_Spain',
+< 'America/Porto_Acre',
+< 'America/Porto_Velho',
+< 'America/Puerto_Rico',
+< 'America/Punta_Arenas',
+< 'America/Rainy_River',
+< 'America/Rankin_Inlet',
+< 'America/Recife',
+< 'America/Regina',
+< 'America/Resolute',
+< 'America/Rio_Branco',
+< 'America/Rosario',
+< 'America/Santa_Isabel',
+< 'America/Santarem',
+< 'America/Santiago',
+< 'America/Santo_Domingo',
+< 'America/Sao_Paulo',
+< 'America/Scoresbysund',
+< 'America/Shiprock',
+< 'America/Sitka',
+< 'America/St_Barthelemy',
+< 'America/St_Johns',
+< 'America/St_Kitts',
+< 'America/St_Lucia',
+< 'America/St_Thomas',
+< 'America/St_Vincent',
+< 'America/Swift_Current',
+< 'America/Tegucigalpa',
+< 'America/Thule',
+< 'America/Thunder_Bay',
+< 'America/Tijuana',
+< 'America/Toronto',
+< 'America/Tortola',
+< 'America/Vancouver',
+< 'America/Virgin',
+< 'America/Whitehorse',
+< 'America/Winnipeg',
+< 'America/Yakutat',
+< 'America/Yellowknife',
+< 'Antarctica/Casey',
+< 'Antarctica/Davis',
+< 'Antarctica/DumontDUrville',
+< 'Antarctica/Macquarie',
+< 'Antarctica/Mawson',
+< 'Antarctica/McMurdo',
+< 'Antarctica/Palmer',
+< 'Antarctica/Rothera',
+< 'Antarctica/South_Pole',
+< 'Antarctica/Syowa',
+< 'Antarctica/Troll',
+< 'Antarctica/Vostok',
+< 'Arctic/Longyearbyen',
+< 'Asia/Aden',
+< 'Asia/Almaty',
+< 'Asia/Amman',
+< 'Asia/Anadyr',
+< 'Asia/Aqtau',
+< 'Asia/Aqtobe',
+< 'Asia/Ashgabat',
+< 'Asia/Ashkhabad',
+< 'Asia/Atyrau',
+< 'Asia/Baghdad',
+< 'Asia/Bahrain',
+< 'Asia/Baku',
+< 'Asia/Bangkok',
+< 'Asia/Barnaul',
+< 'Asia/Beirut',
+< 'Asia/Bishkek',
+< 'Asia/Brunei',
+< 'Asia/Calcutta',
+< 'Asia/Chita',
+< 'Asia/Choibalsan',
+< 'Asia/Chongqing',
+< 'Asia/Chungking',
+< 'Asia/Colombo',
+< 'Asia/Dacca',
+< 'Asia/Damascus',
+< 'Asia/Dhaka',
+< 'Asia/Dili',
+< 'Asia/Dubai',
+< 'Asia/Dushanbe',
+< 'Asia/Famagusta',
+< 'Asia/Gaza',
+< 'Asia/Harbin',
+< 'Asia/Hebron',
+< 'Asia/Ho_Chi_Minh',
+< 'Asia/Hong_Kong',
+< 'Asia/Hovd',
+< 'Asia/Irkutsk',
+< 'Asia/Istanbul',
+< 'Asia/Jakarta',
+< 'Asia/Jayapura',
+< 'Asia/Jerusalem',
+< 'Asia/Kabul',
+< 'Asia/Kamchatka',
+< 'Asia/Karachi',
+< 'Asia/Kashgar',
+< 'Asia/Kathmandu',
+< 'Asia/Katmandu',
+< 'Asia/Khandyga',
+< 'Asia/Kolkata',
+< 'Asia/Krasnoyarsk',
+< 'Asia/Kuala_Lumpur',
+< 'Asia/Kuching',
+< 'Asia/Kuwait',
+< 'Asia/Macao',
+< 'Asia/Macau',
+< 'Asia/Magadan',
+< 'Asia/Makassar',
+< 'Asia/Manila',
+< 'Asia/Muscat',
+< 'Asia/Nicosia',
+< 'Asia/Novokuznetsk',
+< 'Asia/Novosibirsk',
+< 'Asia/Omsk',
+< 'Asia/Oral',
+< 'Asia/Phnom_Penh',
+< 'Asia/Pontianak',
+< 'Asia/Pyongyang',
+< 'Asia/Qatar',
+< 'Asia/Qostanay',
+< 'Asia/Qyzylorda',
+< 'Asia/Rangoon',
+< 'Asia/Riyadh',
+< 'Asia/Saigon',
+< 'Asia/Sakhalin',
+< 'Asia/Samarkand',
+< 'Asia/Seoul',
+< 'Asia/Shanghai',
+< 'Asia/Singapore',
+< 'Asia/Srednekolymsk',
+< 'Asia/Taipei',
+< 'Asia/Tashkent',
+< 'Asia/Tbilisi',
+< 'Asia/Tehran',
+< 'Asia/Tel_Aviv',
+< 'Asia/Thimbu',
+< 'Asia/Thimphu',
+< 'Asia/Tokyo',
+< 'Asia/Tomsk',
+< 'Asia/Ujung_Pandang',
+< 'Asia/Ulaanbaatar',
+< 'Asia/Ulan_Bator',
+< 'Asia/Urumqi',
+< 'Asia/Ust-Nera',
+< 'Asia/Vientiane',
+< 'Asia/Vladivostok',
+< 'Asia/Yakutsk',
+< 'Asia/Yangon',
+< 'Asia/Yekaterinburg',
+< 'Asia/Yerevan',
+< 'Atlantic/Azores',
+< 'Atlantic/Bermuda',
+< 'Atlantic/Canary',
+< 'Atlantic/Cape_Verde',
+< 'Atlantic/Faeroe',
+< 'Atlantic/Faroe',
+< 'Atlantic/Jan_Mayen',
+< 'Atlantic/Madeira',
+< 'Atlantic/Reykjavik',
+< 'Atlantic/South_Georgia',
+< 'Atlantic/St_Helena',
+< 'Atlantic/Stanley',
+< 'Australia/ACT',
+< 'Australia/Adelaide',
+< 'Australia/Brisbane',
+< 'Australia/Broken_Hill',
+< 'Australia/Canberra',
+< 'Australia/Currie',
+< 'Australia/Darwin',
+< 'Australia/Eucla',
+< 'Australia/Hobart',
+< 'Australia/LHI',
+< 'Australia/Lindeman',
+< 'Australia/Lord_Howe',
+< 'Australia/Melbourne',
+< 'Australia/NSW',
+< 'Australia/North',
+< 'Australia/Perth',
+< 'Australia/Queensland',
+< 'Australia/South',
+< 'Australia/Sydney',
+< 'Australia/Tasmania',
+< 'Australia/Victoria',
+< 'Australia/West',
+< 'Australia/Yancowinna',
+< 'Brazil/Acre',
+< 'Brazil/DeNoronha',
+< 'Brazil/East',
+< 'Brazil/West',
+< 'CET',
+< 'CST6CDT',
+< 'Canada/Atlantic',
+< 'Canada/Central',
+< 'Canada/Eastern',
+< 'Canada/Mountain',
+< 'Canada/Newfoundland',
+< 'Canada/Pacific',
+< 'Canada/Saskatchewan',
+< 'Canada/Yukon',
+< 'Chile/Continental',
+< 'Chile/EasterIsland',
+< 'Cuba',
+< 'EET',
+< 'EST',
+< 'EST5EDT',
+< 'Egypt',
+< 'Eire',
+< 'Etc/GMT',
+< 'Etc/GMT+0',
+< 'Etc/GMT+1',
+< 'Etc/GMT+10',
+< 'Etc/GMT+11',
+< 'Etc/GMT+12',
+< 'Etc/GMT+2',
+< 'Etc/GMT+3',
+< 'Etc/GMT+4',
+< 'Etc/GMT+5',
+< 'Etc/GMT+6',
+< 'Etc/GMT+7',
+< 'Etc/GMT+8',
+< 'Etc/GMT+9',
+< 'Etc/GMT-0',
+< 'Etc/GMT-1',
+< 'Etc/GMT-10',
+< 'Etc/GMT-11',
+< 'Etc/GMT-12',
+< 'Etc/GMT-13',
+< 'Etc/GMT-14',
+< 'Etc/GMT-2',
+< 'Etc/GMT-3',
+< 'Etc/GMT-4',
+< 'Etc/GMT-5',
+< 'Etc/GMT-6',
+< 'Etc/GMT-7',
+< 'Etc/GMT-8',
+< 'Etc/GMT-9',
+< 'Etc/GMT0',
+< 'Etc/Greenwich',
+< 'Etc/UCT',
+< 'Etc/UTC',
+< 'Etc/Universal',
+< 'Etc/Zulu',
+< 'Europe/Amsterdam',
+< 'Europe/Andorra',
+< 'Europe/Astrakhan',
+< 'Europe/Athens',
+< 'Europe/Belfast',
+< 'Europe/Belgrade',
+< 'Europe/Berlin',
+< 'Europe/Bratislava',
+< 'Europe/Brussels',
+< 'Europe/Bucharest',
+< 'Europe/Budapest',
+< 'Europe/Busingen',
+< 'Europe/Chisinau',
+< 'Europe/Copenhagen',
+< 'Europe/Dublin',
+< 'Europe/Gibraltar',
+< 'Europe/Guernsey',
+< 'Europe/Helsinki',
+< 'Europe/Isle_of_Man',
+< 'Europe/Istanbul',
+< 'Europe/Jersey',
+< 'Europe/Kaliningrad',
+< 'Europe/Kiev',
+< 'Europe/Kirov',
+< 'Europe/Kyiv',
+< 'Europe/Lisbon',
+< 'Europe/Ljubljana',
+< 'Europe/London',
+< 'Europe/Luxembourg',
+< 'Europe/Madrid',
+< 'Europe/Malta',
+< 'Europe/Mariehamn',
+< 'Europe/Minsk',
+< 'Europe/Monaco',
+< 'Europe/Moscow',
+< 'Europe/Nicosia',
+< 'Europe/Oslo',
+< 'Europe/Paris',
+< 'Europe/Podgorica',
+< 'Europe/Prague',
+< 'Europe/Riga',
+< 'Europe/Rome',
+< 'Europe/Samara',
+< 'Europe/San_Marino',
+< 'Europe/Sarajevo',
+< 'Europe/Saratov',
+< 'Europe/Simferopol',
+< 'Europe/Skopje',
+< 'Europe/Sofia',
+< 'Europe/Stockholm',
+< 'Europe/Tallinn',
+< 'Europe/Tirane',
+< 'Europe/Tiraspol',
+< 'Europe/Ulyanovsk',
+< 'Europe/Uzhgorod',
+< 'Europe/Vaduz',
+< 'Europe/Vatican',
+< 'Europe/Vienna',
+< 'Europe/Vilnius',
+< 'Europe/Volgograd',
+< 'Europe/Warsaw',
+< 'Europe/Zagreb',
+< 'Europe/Zaporozhye',
+< 'Europe/Zurich',
+< 'GB',
+< 'GB-Eire',
+< 'GMT',
+< 'GMT+0',
+< 'GMT-0',
+< 'GMT0',
+< 'Greenwich',
+< 'HST',
+< 'Hongkong',
+< 'Iceland',
+< 'Indian/Antananarivo',
+< 'Indian/Chagos',
+< 'Indian/Christmas',
+< 'Indian/Cocos',
+< 'Indian/Comoro',
+< 'Indian/Kerguelen',
+< 'Indian/Mahe',
+< 'Indian/Maldives',
+< 'Indian/Mauritius',
+< 'Indian/Mayotte',
+< 'Indian/Reunion',
+< 'Iran',
+< 'Israel',
+< 'Jamaica',
+< 'Japan',
+< 'Kwajalein',
+< 'Libya',
+< 'MET',
+< 'MST',
+< 'MST7MDT',
+< 'Mexico/BajaNorte',
+< 'Mexico/BajaSur',
+< 'Mexico/General',
+< 'NZ',
+< 'NZ-CHAT',
+< 'Navajo',
+< 'PRC',
+< 'PST8PDT',
+< 'Pacific/Apia',
+< 'Pacific/Auckland',
+< 'Pacific/Bougainville',
+< 'Pacific/Chatham',
+< 'Pacific/Chuuk',
+< 'Pacific/Easter',
+< 'Pacific/Efate',
+< 'Pacific/Enderbury',
+< 'Pacific/Fakaofo',
+< 'Pacific/Fiji',
+< 'Pacific/Funafuti',
+< 'Pacific/Galapagos',
+< 'Pacific/Gambier',
+< 'Pacific/Guadalcanal',
+< 'Pacific/Guam',
+< 'Pacific/Honolulu',
+< 'Pacific/Johnston',
+< 'Pacific/Kanton',
+< 'Pacific/Kiritimati',
+< 'Pacific/Kosrae',
+< 'Pacific/Kwajalein',
+< 'Pacific/Majuro',
+< 'Pacific/Marquesas',
+< 'Pacific/Midway',
+< 'Pacific/Nauru',
+< 'Pacific/Niue',
+< 'Pacific/Norfolk',
+< 'Pacific/Noumea',
+< 'Pacific/Pago_Pago',
+< 'Pacific/Palau',
+< 'Pacific/Pitcairn',
+< 'Pacific/Pohnpei',
+< 'Pacific/Ponape',
+< 'Pacific/Port_Moresby',
+< 'Pacific/Rarotonga',
+< 'Pacific/Saipan',
+< 'Pacific/Samoa',
+< 'Pacific/Tahiti',
+< 'Pacific/Tarawa',
+< 'Pacific/Tongatapu',
+< 'Pacific/Truk',
+< 'Pacific/Wake',
+< 'Pacific/Wallis',
+< 'Pacific/Yap',
+< 'Poland',
+< 'Portugal',
+< 'ROC',
+< 'ROK',
+< 'Singapore',
+< 'Turkey',
+< 'UCT',
+< 'US/Alaska',
+< 'US/Aleutian',
+< 'US/Arizona',
+< 'US/Central',
+< 'US/East-Indiana',
+< 'US/Eastern',
+< 'US/Hawaii',
+< 'US/Indiana-Starke',
+< 'US/Michigan',
+< 'US/Mountain',
+< 'US/Pacific',
+< 'US/Samoa',
+< 'UTC',
+< 'Universal',
+< 'W-SU',
+< 'WET',
+< 'Zulu']
+---
+> all_timezones = []
+> for root, dirs, files in os.walk(_tzinfo_dir):
+> for exclude in 'posix', 'right':
+> if exclude in dirs:
+> del dirs[dirs.index(exclude)]
+>
+> all_timezones.extend(os.path.join(root, tz_file)[len(_tzinfo_dir)+1:]
+> for tz_file in files
+> if tz_file not in ['leapseconds', 'README', 'Theory']
+> and '.' not in tz_file)
+>
+1105,1542c520,533
+< common_timezones = \
+< ['Africa/Abidjan',
+< 'Africa/Accra',
+< 'Africa/Addis_Ababa',
+< 'Africa/Algiers',
+< 'Africa/Asmara',
+< 'Africa/Bamako',
+< 'Africa/Bangui',
+< 'Africa/Banjul',
+< 'Africa/Bissau',
+< 'Africa/Blantyre',
+< 'Africa/Brazzaville',
+< 'Africa/Bujumbura',
+< 'Africa/Cairo',
+< 'Africa/Casablanca',
+< 'Africa/Ceuta',
+< 'Africa/Conakry',
+< 'Africa/Dakar',
+< 'Africa/Dar_es_Salaam',
+< 'Africa/Djibouti',
+< 'Africa/Douala',
+< 'Africa/El_Aaiun',
+< 'Africa/Freetown',
+< 'Africa/Gaborone',
+< 'Africa/Harare',
+< 'Africa/Johannesburg',
+< 'Africa/Juba',
+< 'Africa/Kampala',
+< 'Africa/Khartoum',
+< 'Africa/Kigali',
+< 'Africa/Kinshasa',
+< 'Africa/Lagos',
+< 'Africa/Libreville',
+< 'Africa/Lome',
+< 'Africa/Luanda',
+< 'Africa/Lubumbashi',
+< 'Africa/Lusaka',
+< 'Africa/Malabo',
+< 'Africa/Maputo',
+< 'Africa/Maseru',
+< 'Africa/Mbabane',
+< 'Africa/Mogadishu',
+< 'Africa/Monrovia',
+< 'Africa/Nairobi',
+< 'Africa/Ndjamena',
+< 'Africa/Niamey',
+< 'Africa/Nouakchott',
+< 'Africa/Ouagadougou',
+< 'Africa/Porto-Novo',
+< 'Africa/Sao_Tome',
+< 'Africa/Tripoli',
+< 'Africa/Tunis',
+< 'Africa/Windhoek',
+< 'America/Adak',
+< 'America/Anchorage',
+< 'America/Anguilla',
+< 'America/Antigua',
+< 'America/Araguaina',
+< 'America/Argentina/Buenos_Aires',
+< 'America/Argentina/Catamarca',
+< 'America/Argentina/Cordoba',
+< 'America/Argentina/Jujuy',
+< 'America/Argentina/La_Rioja',
+< 'America/Argentina/Mendoza',
+< 'America/Argentina/Rio_Gallegos',
+< 'America/Argentina/Salta',
+< 'America/Argentina/San_Juan',
+< 'America/Argentina/San_Luis',
+< 'America/Argentina/Tucuman',
+< 'America/Argentina/Ushuaia',
+< 'America/Aruba',
+< 'America/Asuncion',
+< 'America/Atikokan',
+< 'America/Bahia',
+< 'America/Bahia_Banderas',
+< 'America/Barbados',
+< 'America/Belem',
+< 'America/Belize',
+< 'America/Blanc-Sablon',
+< 'America/Boa_Vista',
+< 'America/Bogota',
+< 'America/Boise',
+< 'America/Cambridge_Bay',
+< 'America/Campo_Grande',
+< 'America/Cancun',
+< 'America/Caracas',
+< 'America/Cayenne',
+< 'America/Cayman',
+< 'America/Chicago',
+< 'America/Chihuahua',
+< 'America/Costa_Rica',
+< 'America/Creston',
+< 'America/Cuiaba',
+< 'America/Curacao',
+< 'America/Danmarkshavn',
+< 'America/Dawson',
+< 'America/Dawson_Creek',
+< 'America/Denver',
+< 'America/Detroit',
+< 'America/Dominica',
+< 'America/Edmonton',
+< 'America/Eirunepe',
+< 'America/El_Salvador',
+< 'America/Fort_Nelson',
+< 'America/Fortaleza',
+< 'America/Glace_Bay',
+< 'America/Goose_Bay',
+< 'America/Grand_Turk',
+< 'America/Grenada',
+< 'America/Guadeloupe',
+< 'America/Guatemala',
+< 'America/Guayaquil',
+< 'America/Guyana',
+< 'America/Halifax',
+< 'America/Havana',
+< 'America/Hermosillo',
+< 'America/Indiana/Indianapolis',
+< 'America/Indiana/Knox',
+< 'America/Indiana/Marengo',
+< 'America/Indiana/Petersburg',
+< 'America/Indiana/Tell_City',
+< 'America/Indiana/Vevay',
+< 'America/Indiana/Vincennes',
+< 'America/Indiana/Winamac',
+< 'America/Inuvik',
+< 'America/Iqaluit',
+< 'America/Jamaica',
+< 'America/Juneau',
+< 'America/Kentucky/Louisville',
+< 'America/Kentucky/Monticello',
+< 'America/Kralendijk',
+< 'America/La_Paz',
+< 'America/Lima',
+< 'America/Los_Angeles',
+< 'America/Lower_Princes',
+< 'America/Maceio',
+< 'America/Managua',
+< 'America/Manaus',
+< 'America/Marigot',
+< 'America/Martinique',
+< 'America/Matamoros',
+< 'America/Mazatlan',
+< 'America/Menominee',
+< 'America/Merida',
+< 'America/Metlakatla',
+< 'America/Mexico_City',
+< 'America/Miquelon',
+< 'America/Moncton',
+< 'America/Monterrey',
+< 'America/Montevideo',
+< 'America/Montserrat',
+< 'America/Nassau',
+< 'America/New_York',
+< 'America/Nipigon',
+< 'America/Nome',
+< 'America/Noronha',
+< 'America/North_Dakota/Beulah',
+< 'America/North_Dakota/Center',
+< 'America/North_Dakota/New_Salem',
+< 'America/Nuuk',
+< 'America/Ojinaga',
+< 'America/Panama',
+< 'America/Pangnirtung',
+< 'America/Paramaribo',
+< 'America/Phoenix',
+< 'America/Port-au-Prince',
+< 'America/Port_of_Spain',
+< 'America/Porto_Velho',
+< 'America/Puerto_Rico',
+< 'America/Punta_Arenas',
+< 'America/Rainy_River',
+< 'America/Rankin_Inlet',
+< 'America/Recife',
+< 'America/Regina',
+< 'America/Resolute',
+< 'America/Rio_Branco',
+< 'America/Santarem',
+< 'America/Santiago',
+< 'America/Santo_Domingo',
+< 'America/Sao_Paulo',
+< 'America/Scoresbysund',
+< 'America/Sitka',
+< 'America/St_Barthelemy',
+< 'America/St_Johns',
+< 'America/St_Kitts',
+< 'America/St_Lucia',
+< 'America/St_Thomas',
+< 'America/St_Vincent',
+< 'America/Swift_Current',
+< 'America/Tegucigalpa',
+< 'America/Thule',
+< 'America/Thunder_Bay',
+< 'America/Tijuana',
+< 'America/Toronto',
+< 'America/Tortola',
+< 'America/Vancouver',
+< 'America/Whitehorse',
+< 'America/Winnipeg',
+< 'America/Yakutat',
+< 'America/Yellowknife',
+< 'Antarctica/Casey',
+< 'Antarctica/Davis',
+< 'Antarctica/DumontDUrville',
+< 'Antarctica/Macquarie',
+< 'Antarctica/Mawson',
+< 'Antarctica/McMurdo',
+< 'Antarctica/Palmer',
+< 'Antarctica/Rothera',
+< 'Antarctica/Syowa',
+< 'Antarctica/Troll',
+< 'Antarctica/Vostok',
+< 'Arctic/Longyearbyen',
+< 'Asia/Aden',
+< 'Asia/Almaty',
+< 'Asia/Amman',
+< 'Asia/Anadyr',
+< 'Asia/Aqtau',
+< 'Asia/Aqtobe',
+< 'Asia/Ashgabat',
+< 'Asia/Atyrau',
+< 'Asia/Baghdad',
+< 'Asia/Bahrain',
+< 'Asia/Baku',
+< 'Asia/Bangkok',
+< 'Asia/Barnaul',
+< 'Asia/Beirut',
+< 'Asia/Bishkek',
+< 'Asia/Brunei',
+< 'Asia/Chita',
+< 'Asia/Choibalsan',
+< 'Asia/Colombo',
+< 'Asia/Damascus',
+< 'Asia/Dhaka',
+< 'Asia/Dili',
+< 'Asia/Dubai',
+< 'Asia/Dushanbe',
+< 'Asia/Famagusta',
+< 'Asia/Gaza',
+< 'Asia/Hebron',
+< 'Asia/Ho_Chi_Minh',
+< 'Asia/Hong_Kong',
+< 'Asia/Hovd',
+< 'Asia/Irkutsk',
+< 'Asia/Jakarta',
+< 'Asia/Jayapura',
+< 'Asia/Jerusalem',
+< 'Asia/Kabul',
+< 'Asia/Kamchatka',
+< 'Asia/Karachi',
+< 'Asia/Kathmandu',
+< 'Asia/Khandyga',
+< 'Asia/Kolkata',
+< 'Asia/Krasnoyarsk',
+< 'Asia/Kuala_Lumpur',
+< 'Asia/Kuching',
+< 'Asia/Kuwait',
+< 'Asia/Macau',
+< 'Asia/Magadan',
+< 'Asia/Makassar',
+< 'Asia/Manila',
+< 'Asia/Muscat',
+< 'Asia/Nicosia',
+< 'Asia/Novokuznetsk',
+< 'Asia/Novosibirsk',
+< 'Asia/Omsk',
+< 'Asia/Oral',
+< 'Asia/Phnom_Penh',
+< 'Asia/Pontianak',
+< 'Asia/Pyongyang',
+< 'Asia/Qatar',
+< 'Asia/Qostanay',
+< 'Asia/Qyzylorda',
+< 'Asia/Riyadh',
+< 'Asia/Sakhalin',
+< 'Asia/Samarkand',
+< 'Asia/Seoul',
+< 'Asia/Shanghai',
+< 'Asia/Singapore',
+< 'Asia/Srednekolymsk',
+< 'Asia/Taipei',
+< 'Asia/Tashkent',
+< 'Asia/Tbilisi',
+< 'Asia/Tehran',
+< 'Asia/Thimphu',
+< 'Asia/Tokyo',
+< 'Asia/Tomsk',
+< 'Asia/Ulaanbaatar',
+< 'Asia/Urumqi',
+< 'Asia/Ust-Nera',
+< 'Asia/Vientiane',
+< 'Asia/Vladivostok',
+< 'Asia/Yakutsk',
+< 'Asia/Yangon',
+< 'Asia/Yekaterinburg',
+< 'Asia/Yerevan',
+< 'Atlantic/Azores',
+< 'Atlantic/Bermuda',
+< 'Atlantic/Canary',
+< 'Atlantic/Cape_Verde',
+< 'Atlantic/Faroe',
+< 'Atlantic/Madeira',
+< 'Atlantic/Reykjavik',
+< 'Atlantic/South_Georgia',
+< 'Atlantic/St_Helena',
+< 'Atlantic/Stanley',
+< 'Australia/Adelaide',
+< 'Australia/Brisbane',
+< 'Australia/Broken_Hill',
+< 'Australia/Darwin',
+< 'Australia/Eucla',
+< 'Australia/Hobart',
+< 'Australia/Lindeman',
+< 'Australia/Lord_Howe',
+< 'Australia/Melbourne',
+< 'Australia/Perth',
+< 'Australia/Sydney',
+< 'Canada/Atlantic',
+< 'Canada/Central',
+< 'Canada/Eastern',
+< 'Canada/Mountain',
+< 'Canada/Newfoundland',
+< 'Canada/Pacific',
+< 'Europe/Amsterdam',
+< 'Europe/Andorra',
+< 'Europe/Astrakhan',
+< 'Europe/Athens',
+< 'Europe/Belgrade',
+< 'Europe/Berlin',
+< 'Europe/Bratislava',
+< 'Europe/Brussels',
+< 'Europe/Bucharest',
+< 'Europe/Budapest',
+< 'Europe/Busingen',
+< 'Europe/Chisinau',
+< 'Europe/Copenhagen',
+< 'Europe/Dublin',
+< 'Europe/Gibraltar',
+< 'Europe/Guernsey',
+< 'Europe/Helsinki',
+< 'Europe/Isle_of_Man',
+< 'Europe/Istanbul',
+< 'Europe/Jersey',
+< 'Europe/Kaliningrad',
+< 'Europe/Kirov',
+< 'Europe/Kyiv',
+< 'Europe/Lisbon',
+< 'Europe/Ljubljana',
+< 'Europe/London',
+< 'Europe/Luxembourg',
+< 'Europe/Madrid',
+< 'Europe/Malta',
+< 'Europe/Mariehamn',
+< 'Europe/Minsk',
+< 'Europe/Monaco',
+< 'Europe/Moscow',
+< 'Europe/Oslo',
+< 'Europe/Paris',
+< 'Europe/Podgorica',
+< 'Europe/Prague',
+< 'Europe/Riga',
+< 'Europe/Rome',
+< 'Europe/Samara',
+< 'Europe/San_Marino',
+< 'Europe/Sarajevo',
+< 'Europe/Saratov',
+< 'Europe/Simferopol',
+< 'Europe/Skopje',
+< 'Europe/Sofia',
+< 'Europe/Stockholm',
+< 'Europe/Tallinn',
+< 'Europe/Tirane',
+< 'Europe/Ulyanovsk',
+< 'Europe/Vaduz',
+< 'Europe/Vatican',
+< 'Europe/Vienna',
+< 'Europe/Vilnius',
+< 'Europe/Volgograd',
+< 'Europe/Warsaw',
+< 'Europe/Zagreb',
+< 'Europe/Zurich',
+< 'GMT',
+< 'Indian/Antananarivo',
+< 'Indian/Chagos',
+< 'Indian/Christmas',
+< 'Indian/Cocos',
+< 'Indian/Comoro',
+< 'Indian/Kerguelen',
+< 'Indian/Mahe',
+< 'Indian/Maldives',
+< 'Indian/Mauritius',
+< 'Indian/Mayotte',
+< 'Indian/Reunion',
+< 'Pacific/Apia',
+< 'Pacific/Auckland',
+< 'Pacific/Bougainville',
+< 'Pacific/Chatham',
+< 'Pacific/Chuuk',
+< 'Pacific/Easter',
+< 'Pacific/Efate',
+< 'Pacific/Fakaofo',
+< 'Pacific/Fiji',
+< 'Pacific/Funafuti',
+< 'Pacific/Galapagos',
+< 'Pacific/Gambier',
+< 'Pacific/Guadalcanal',
+< 'Pacific/Guam',
+< 'Pacific/Honolulu',
+< 'Pacific/Kanton',
+< 'Pacific/Kiritimati',
+< 'Pacific/Kosrae',
+< 'Pacific/Kwajalein',
+< 'Pacific/Majuro',
+< 'Pacific/Marquesas',
+< 'Pacific/Midway',
+< 'Pacific/Nauru',
+< 'Pacific/Niue',
+< 'Pacific/Norfolk',
+< 'Pacific/Noumea',
+< 'Pacific/Pago_Pago',
+< 'Pacific/Palau',
+< 'Pacific/Pitcairn',
+< 'Pacific/Pohnpei',
+< 'Pacific/Port_Moresby',
+< 'Pacific/Rarotonga',
+< 'Pacific/Saipan',
+< 'Pacific/Tahiti',
+< 'Pacific/Tarawa',
+< 'Pacific/Tongatapu',
+< 'Pacific/Wake',
+< 'Pacific/Wallis',
+< 'US/Alaska',
+< 'US/Arizona',
+< 'US/Central',
+< 'US/Eastern',
+< 'US/Hawaii',
+< 'US/Mountain',
+< 'US/Pacific',
+< 'UTC']
+---
+> with open(os.path.join(_tzinfo_dir, 'zone.tab')) as zonetab:
+> common_timezones = [l.split()[2]
+> for l in zonetab
+> if l != '' and l[0] != '#']
+> common_timezones.extend(
+> ['GMT',
+> 'US/Alaska',
+> 'US/Arizona',
+> 'US/Central',
+> 'US/Eastern',
+> 'US/Hawaii',
+> 'US/Mountain',
+> 'US/Pacific',
+> 'UTC'])