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__init__.py

00001 '''
datetime.tzinfo timezone definitions generated from the
Olson timezone database:

    ftp://elsie.nci.nih.gov/pub/tz*.tar.gz

See the datetime section of the Python Library Reference for information
on how to use these modules.
'''

# The Olson database has historically been updated about 4 times a year
OLSON_VERSION = '2007g'
VERSION = OLSON_VERSION
#VERSION = OLSON_VERSION + '.2'
__version__ = OLSON_VERSION+'-mpl'

OLSEN_VERSION = OLSON_VERSION # Old releases had this misspelling

__all__ = [
    'timezone', 'utc', 'country_timezones',
    'AmbiguousTimeError', 'UnknownTimeZoneError',
    'all_timezones', 'all_timezones_set',
    'common_timezones', 'common_timezones_set',
    ]

import sys, datetime, os.path, gettext

try:
    from pkg_resources import resource_stream
except ImportError:
    resource_stream = None

from tzinfo import AmbiguousTimeError, unpickler
from tzfile import build_tzinfo

# Use 2.3 sets module implementation if set builtin is not available
try:
    set
except NameError:
    from sets import Set as set


00043 def open_resource(name):
    """Open a resource from the zoneinfo subdir for reading.

    Uses the pkg_resources module if available.
    """
    if resource_stream is not None:
        return resource_stream(__name__, 'zoneinfo/' + name)
    else:
        name_parts = name.lstrip('/').split('/')
        for part in name_parts:
            if part == os.path.pardir or os.path.sep in part:
                raise ValueError('Bad path segment: %r' % part)
        filename = os.path.join(os.path.dirname(__file__),
                                'zoneinfo', *name_parts)
        return open(filename, 'rb')
        

# Enable this when we get some translations?
# We want an i18n API that is useful to programs using Python's gettext
# module, as well as the Zope3 i18n package. Perhaps we should just provide
# the POT file and translations, and leave it up to callers to make use
# of them.
# 
# t = gettext.translation(
#         'pytz', os.path.join(os.path.dirname(__file__), 'locales'),
#         fallback=True
#         )
# def _(timezone_name):
#     """Translate a timezone name using the current locale, returning Unicode"""
#     return t.ugettext(timezone_name)


00075 class UnknownTimeZoneError(KeyError):
    '''Exception raised when pytz is passed an unknown timezone.

    >>> isinstance(UnknownTimeZoneError(), LookupError)
    True

    This class is actually a subclass of KeyError to provide backwards
    compatibility with code relying on the undocumented behavior of earlier
    pytz releases.

    >>> isinstance(UnknownTimeZoneError(), KeyError)
    True
    '''
    pass


_tzinfo_cache = {}

def timezone(zone):
    r''' Return a datetime.tzinfo implementation for the given timezone 
    
    >>> from datetime import datetime, timedelta
    >>> utc = timezone('UTC')
    >>> eastern = timezone('US/Eastern')
    >>> eastern.zone
    'US/Eastern'
    >>> timezone(u'US/Eastern') is eastern
    True
    >>> utc_dt = datetime(2002, 10, 27, 6, 0, 0, tzinfo=utc)
    >>> loc_dt = utc_dt.astimezone(eastern)
    >>> fmt = '%Y-%m-%d %H:%M:%S %Z (%z)'
    >>> loc_dt.strftime(fmt)
    '2002-10-27 01:00:00 EST (-0500)'
    >>> (loc_dt - timedelta(minutes=10)).strftime(fmt)
    '2002-10-27 00:50:00 EST (-0500)'
    >>> eastern.normalize(loc_dt - timedelta(minutes=10)).strftime(fmt)
    '2002-10-27 01:50:00 EDT (-0400)'
    >>> (loc_dt + timedelta(minutes=10)).strftime(fmt)
    '2002-10-27 01:10:00 EST (-0500)'

    Raises UnknownTimeZoneError if passed an unknown zone.

    >>> timezone('Asia/Shangri-La')
    Traceback (most recent call last):
    ...
    UnknownTimeZoneError: 'Asia/Shangri-La'

    >>> timezone(u'\N{TRADE MARK SIGN}')
    Traceback (most recent call last):
    ...
    UnknownTimeZoneError: u'\u2122'
    '''
    if zone.upper() == 'UTC':
        return utc

    try:
        zone = zone.encode('US-ASCII')
    except UnicodeEncodeError:
        # All valid timezones are ASCII
        raise UnknownTimeZoneError(zone)

    zone = _unmunge_zone(zone)
    if zone not in _tzinfo_cache:
        if zone in all_timezones_set:
            _tzinfo_cache[zone] = build_tzinfo(zone, open_resource(zone))
        else:
            raise UnknownTimeZoneError(zone)
    
    return _tzinfo_cache[zone]


00146 def _unmunge_zone(zone):
    """Undo the time zone name munging done by older versions of pytz."""
    return zone.replace('_plus_', '+').replace('_minus_', '-')


ZERO = datetime.timedelta(0)
HOUR = datetime.timedelta(hours=1)


00155 class UTC(datetime.tzinfo):
    """UTC
    
    Identical to the reference UTC implementation given in Python docs except
    that it unpickles using the single module global instance defined beneath
    this class declaration.

    Also contains extra attributes and methods to match other pytz tzinfo
    instances.
    """
    zone = "UTC"

    def utcoffset(self, dt):
        return ZERO

    def tzname(self, dt):
        return "UTC"

    def dst(self, dt):
        return ZERO
    
    def __reduce__(self):
        return _UTC, ()

00179     def localize(self, dt, is_dst=False):
        '''Convert naive time to local time'''
        if dt.tzinfo is not None:
            raise ValueError, 'Not naive datetime (tzinfo is already set)'
        return dt.replace(tzinfo=self)

00185     def normalize(self, dt, is_dst=False):
        '''Correct the timezone information on the given datetime'''
        if dt.tzinfo is None:
            raise ValueError, 'Naive time - no tzinfo set'
        return dt.replace(tzinfo=self)

    def __repr__(self):
        return "<UTC>"

    def __str__(self):
        return "UTC"


UTC = utc = UTC() # UTC is a singleton


00201 def _UTC():
    """Factory function for utc unpickling.
    
    Makes sure that unpickling a utc instance always returns the same 
    module global.
    
    These examples belong in the UTC class above, but it is obscured; or in
    the README.txt, but we are not depending on Python 2.4 so integrating
    the README.txt examples with the unit tests is not trivial.
    
    >>> import datetime, pickle
    >>> dt = datetime.datetime(2005, 3, 1, 14, 13, 21, tzinfo=utc)
    >>> naive = dt.replace(tzinfo=None)
    >>> p = pickle.dumps(dt, 1)
    >>> naive_p = pickle.dumps(naive, 1)
    >>> len(p), len(naive_p), len(p) - len(naive_p)
    (60, 43, 17)
    >>> new = pickle.loads(p)
    >>> new == dt
    True
    >>> new is dt
    False
    >>> new.tzinfo is dt.tzinfo
    True
    >>> utc is UTC is timezone('UTC')
    True
    >>> utc is timezone('GMT')
    False
    """
    return utc
_UTC.__safe_for_unpickling__ = True


00234 def _p(*args):
    """Factory function for unpickling pytz tzinfo instances.

    Just a wrapper around tzinfo.unpickler to save a few bytes in each pickle
    by shortening the path.
    """
    return unpickler(*args)
_p.__safe_for_unpickling__ = True

_country_timezones_cache = {}

00245 def country_timezones(iso3166_code):
    """Return a list of timezones used in a particular country.

    iso3166_code is the two letter code used to identify the country.

    >>> country_timezones('ch')
    ['Europe/Zurich']
    >>> country_timezones('CH')
    ['Europe/Zurich']
    >>> country_timezones(u'ch')
    ['Europe/Zurich']
    >>> country_timezones('XXX')
    Traceback (most recent call last):
    ...
    KeyError: 'XXX'
    """
    iso3166_code = iso3166_code.upper()
    if not _country_timezones_cache:
        zone_tab = open_resource('zone.tab')
        for line in zone_tab:
            if line.startswith('#'):
                continue
            code, coordinates, zone = line.split(None, 4)[:3]
            try:
                _country_timezones_cache[code].append(zone)
            except KeyError:
                _country_timezones_cache[code] = [zone]
    return _country_timezones_cache[iso3166_code]


# Time-zone info based solely on fixed offsets

class _FixedOffset(datetime.tzinfo):

    zone = None # to match the standard pytz API

    def __init__(self, minutes):
        if abs(minutes) >= 1440:
            raise ValueError("absolute offset is too large", minutes)
        self._minutes = minutes
        self._offset = datetime.timedelta(minutes=minutes)

    def utcoffset(self, dt):
        return self._offset

    def __reduce__(self):
        return FixedOffset, (self._minutes, )

    def dst(self, dt):
        return None
    
    def tzname(self, dt):
        return None

    def __repr__(self):
        return 'pytz.FixedOffset(%d)' % self._minutes

    def localize(self, dt, is_dst=False):
        '''Convert naive time to local time'''
        if dt.tzinfo is not None:
            raise ValueError, 'Not naive datetime (tzinfo is already set)'
        return dt.replace(tzinfo=self)

    def normalize(self, dt, is_dst=False):
        '''Correct the timezone information on the given datetime'''
        if dt.tzinfo is None:
            raise ValueError, 'Naive time - no tzinfo set'
        return dt.replace(tzinfo=self)


00315 def FixedOffset(offset, _tzinfos = {}):
    """return a fixed-offset timezone based off a number of minutes.
    
        >>> one = FixedOffset(-330)
        >>> one
        pytz.FixedOffset(-330)
        >>> one.utcoffset(datetime.datetime.now())
        datetime.timedelta(-1, 66600)

        >>> two = FixedOffset(1380)
        >>> two
        pytz.FixedOffset(1380)
        >>> two.utcoffset(datetime.datetime.now())
        datetime.timedelta(0, 82800)
    
    The datetime.timedelta must be between the range of -1 and 1 day,
    non-inclusive.

        >>> FixedOffset(1440)
        Traceback (most recent call last):
        ...
        ValueError: ('absolute offset is too large', 1440)

        >>> FixedOffset(-1440)
        Traceback (most recent call last):
        ...
        ValueError: ('absolute offset is too large', -1440)

    An offset of 0 is special-cased to return UTC.

        >>> FixedOffset(0) is UTC
        True

    There should always be only one instance of a FixedOffset per timedelta.
    This should be true for multiple creation calls.
    
        >>> FixedOffset(-330) is one
        True
        >>> FixedOffset(1380) is two
        True

    It should also be true for pickling.

        >>> import pickle
        >>> pickle.loads(pickle.dumps(one)) is one
        True
        >>> pickle.loads(pickle.dumps(two)) is two
        True
    """
    if offset == 0:
        return UTC

    info = _tzinfos.get(offset)
    if info is None:
        # We haven't seen this one before. we need to save it.

        # Use setdefault to avoid a race condition and make sure we have
        # only one
        info = _tzinfos.setdefault(offset, _FixedOffset(offset))

    return info

FixedOffset.__safe_for_unpickling__ = True


def _test():
    import doctest, os, sys
    sys.path.insert(0, os.pardir)
    import pytz
    return doctest.testmod(pytz)

if __name__ == '__main__':
    _test()

common_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/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/Aruba',
 'America/Asuncion',
 'America/Atikokan',
 'America/Atka',
 'America/Bahia',
 '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/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_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/Indianapolis',
 'America/Inuvik',
 'America/Iqaluit',
 'America/Jamaica',
 'America/Jujuy',
 'America/Juneau',
 'America/Knox_IN',
 'America/La_Paz',
 'America/Lima',
 'America/Los_Angeles',
 'America/Louisville',
 'America/Maceio',
 'America/Managua',
 'America/Manaus',
 'America/Martinique',
 'America/Mazatlan',
 'America/Mendoza',
 'America/Menominee',
 'America/Merida',
 '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/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/Rainy_River',
 'America/Rankin_Inlet',
 'America/Recife',
 'America/Regina',
 'America/Resolute',
 'America/Rio_Branco',
 'America/Rosario',
 'America/Santiago',
 'America/Santo_Domingo',
 'America/Sao_Paulo',
 'America/Scoresbysund',
 'America/Shiprock',
 '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/Mawson',
 'Antarctica/McMurdo',
 'Antarctica/Palmer',
 'Antarctica/Rothera',
 'Antarctica/South_Pole',
 'Antarctica/Syowa',
 'Antarctica/Vostok',
 'Arctic/Longyearbyen',
 'Asia/Aden',
 'Asia/Almaty',
 'Asia/Amman',
 'Asia/Anadyr',
 'Asia/Aqtau',
 'Asia/Aqtobe',
 'Asia/Ashgabat',
 'Asia/Ashkhabad',
 'Asia/Baghdad',
 'Asia/Bahrain',
 'Asia/Baku',
 'Asia/Bangkok',
 'Asia/Beirut',
 'Asia/Bishkek',
 'Asia/Brunei',
 'Asia/Calcutta',
 'Asia/Choibalsan',
 'Asia/Chongqing',
 'Asia/Chungking',
 'Asia/Colombo',
 'Asia/Dacca',
 'Asia/Damascus',
 'Asia/Dhaka',
 'Asia/Dili',
 'Asia/Dubai',
 'Asia/Dushanbe',
 'Asia/Gaza',
 'Asia/Harbin',
 'Asia/Hong_Kong',
 'Asia/Hovd',
 'Asia/Irkutsk',
 'Asia/Istanbul',
 'Asia/Jakarta',
 'Asia/Jayapura',
 'Asia/Jerusalem',
 'Asia/Kabul',
 'Asia/Kamchatka',
 'Asia/Karachi',
 'Asia/Kashgar',
 'Asia/Katmandu',
 'Asia/Krasnoyarsk',
 'Asia/Kuala_Lumpur',
 'Asia/Kuching',
 'Asia/Kuwait',
 'Asia/Macao',
 'Asia/Macau',
 'Asia/Magadan',
 'Asia/Makassar',
 'Asia/Manila',
 'Asia/Muscat',
 'Asia/Nicosia',
 'Asia/Novosibirsk',
 'Asia/Omsk',
 'Asia/Oral',
 'Asia/Phnom_Penh',
 'Asia/Pontianak',
 'Asia/Pyongyang',
 'Asia/Qatar',
 'Asia/Qyzylorda',
 'Asia/Rangoon',
 'Asia/Riyadh',
 'Asia/Saigon',
 'Asia/Sakhalin',
 'Asia/Samarkand',
 'Asia/Seoul',
 'Asia/Shanghai',
 'Asia/Singapore',
 'Asia/Taipei',
 'Asia/Tashkent',
 'Asia/Tbilisi',
 'Asia/Tehran',
 'Asia/Tel_Aviv',
 'Asia/Thimbu',
 'Asia/Thimphu',
 'Asia/Tokyo',
 'Asia/Ujung_Pandang',
 'Asia/Ulaanbaatar',
 'Asia/Ulan_Bator',
 'Asia/Urumqi',
 'Asia/Vientiane',
 'Asia/Vladivostok',
 'Asia/Yakutsk',
 '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',
 'Canada/Atlantic',
 'Canada/Central',
 'Canada/East-Saskatchewan',
 'Canada/Eastern',
 'Canada/Mountain',
 'Canada/Newfoundland',
 'Canada/Pacific',
 'Canada/Saskatchewan',
 'Canada/Yukon',
 'Chile/Continental',
 'Chile/EasterIsland',
 'Europe/Amsterdam',
 'Europe/Andorra',
 'Europe/Athens',
 'Europe/Belfast',
 'Europe/Belgrade',
 'Europe/Berlin',
 'Europe/Bratislava',
 'Europe/Brussels',
 'Europe/Bucharest',
 'Europe/Budapest',
 '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/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/Simferopol',
 'Europe/Skopje',
 'Europe/Sofia',
 'Europe/Stockholm',
 'Europe/Tallinn',
 'Europe/Tirane',
 'Europe/Tiraspol',
 'Europe/Uzhgorod',
 'Europe/Vaduz',
 'Europe/Vatican',
 'Europe/Vienna',
 'Europe/Vilnius',
 'Europe/Volgograd',
 'Europe/Warsaw',
 'Europe/Zagreb',
 'Europe/Zaporozhye',
 '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',
 'Mexico/BajaNorte',
 'Mexico/BajaSur',
 'Mexico/General',
 'Pacific/Apia',
 'Pacific/Auckland',
 'Pacific/Chatham',
 '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/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/Ponape',
 'Pacific/Port_Moresby',
 'Pacific/Rarotonga',
 'Pacific/Saipan',
 'Pacific/Samoa',
 'Pacific/Tahiti',
 'Pacific/Tarawa',
 'Pacific/Tongatapu',
 'Pacific/Truk',
 'Pacific/Wake',
 'Pacific/Wallis',
 'Pacific/Yap',
 '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/Pacific-New',
 'US/Samoa',
 'UTC']
common_timezones_set = set(common_timezones)

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/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/San_Juan',
 'America/Argentina/Tucuman',
 'America/Argentina/Ushuaia',
 'America/Aruba',
 'America/Asuncion',
 'America/Atikokan',
 'America/Atka',
 'America/Bahia',
 '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/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_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/La_Paz',
 'America/Lima',
 'America/Los_Angeles',
 'America/Louisville',
 'America/Maceio',
 'America/Managua',
 'America/Manaus',
 'America/Martinique',
 'America/Mazatlan',
 'America/Mendoza',
 'America/Menominee',
 'America/Merida',
 '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/Center',
 'America/North_Dakota/New_Salem',
 '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/Rainy_River',
 'America/Rankin_Inlet',
 'America/Recife',
 'America/Regina',
 'America/Resolute',
 'America/Rio_Branco',
 'America/Rosario',
 'America/Santiago',
 'America/Santo_Domingo',
 'America/Sao_Paulo',
 'America/Scoresbysund',
 'America/Shiprock',
 '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/Mawson',
 'Antarctica/McMurdo',
 'Antarctica/Palmer',
 'Antarctica/Rothera',
 'Antarctica/South_Pole',
 'Antarctica/Syowa',
 'Antarctica/Vostok',
 'Arctic/Longyearbyen',
 'Asia/Aden',
 'Asia/Almaty',
 'Asia/Amman',
 'Asia/Anadyr',
 'Asia/Aqtau',
 'Asia/Aqtobe',
 'Asia/Ashgabat',
 'Asia/Ashkhabad',
 'Asia/Baghdad',
 'Asia/Bahrain',
 'Asia/Baku',
 'Asia/Bangkok',
 'Asia/Beirut',
 'Asia/Bishkek',
 'Asia/Brunei',
 'Asia/Calcutta',
 'Asia/Choibalsan',
 'Asia/Chongqing',
 'Asia/Chungking',
 'Asia/Colombo',
 'Asia/Dacca',
 'Asia/Damascus',
 'Asia/Dhaka',
 'Asia/Dili',
 'Asia/Dubai',
 'Asia/Dushanbe',
 'Asia/Gaza',
 'Asia/Harbin',
 'Asia/Hong_Kong',
 'Asia/Hovd',
 'Asia/Irkutsk',
 'Asia/Istanbul',
 'Asia/Jakarta',
 'Asia/Jayapura',
 'Asia/Jerusalem',
 'Asia/Kabul',
 'Asia/Kamchatka',
 'Asia/Karachi',
 'Asia/Kashgar',
 'Asia/Katmandu',
 'Asia/Krasnoyarsk',
 'Asia/Kuala_Lumpur',
 'Asia/Kuching',
 'Asia/Kuwait',
 'Asia/Macao',
 'Asia/Macau',
 'Asia/Magadan',
 'Asia/Makassar',
 'Asia/Manila',
 'Asia/Muscat',
 'Asia/Nicosia',
 'Asia/Novosibirsk',
 'Asia/Omsk',
 'Asia/Oral',
 'Asia/Phnom_Penh',
 'Asia/Pontianak',
 'Asia/Pyongyang',
 'Asia/Qatar',
 'Asia/Qyzylorda',
 'Asia/Rangoon',
 'Asia/Riyadh',
 'Asia/Saigon',
 'Asia/Sakhalin',
 'Asia/Samarkand',
 'Asia/Seoul',
 'Asia/Shanghai',
 'Asia/Singapore',
 'Asia/Taipei',
 'Asia/Tashkent',
 'Asia/Tbilisi',
 'Asia/Tehran',
 'Asia/Tel_Aviv',
 'Asia/Thimbu',
 'Asia/Thimphu',
 'Asia/Tokyo',
 'Asia/Ujung_Pandang',
 'Asia/Ulaanbaatar',
 'Asia/Ulan_Bator',
 'Asia/Urumqi',
 'Asia/Vientiane',
 'Asia/Vladivostok',
 'Asia/Yakutsk',
 '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/East-Saskatchewan',
 '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/Athens',
 'Europe/Belfast',
 'Europe/Belgrade',
 'Europe/Berlin',
 'Europe/Bratislava',
 'Europe/Brussels',
 'Europe/Bucharest',
 'Europe/Budapest',
 '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/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/Simferopol',
 'Europe/Skopje',
 'Europe/Sofia',
 'Europe/Stockholm',
 'Europe/Tallinn',
 'Europe/Tirane',
 'Europe/Tiraspol',
 '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/Chatham',
 '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/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/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/Pacific-New',
 'US/Samoa',
 'UTC',
 'Universal',
 'W-SU',
 'WET',
 'Zulu',
 'posixrules']
all_timezones_set = set(all_timezones)

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