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    babel.dates
    ~~~~~~~~~~~

    Locale dependent formatting and parsing of dates and times.

    The default locale for the functions in this module is determined by the
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     * ``LC_TIME``,
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    'UTC'

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    >>> get_day_names('abbreviated', locale='es')[1]
    u'mar'
    >>> get_day_names('narrow', context='stand-alone', locale='de_DE')[1]
    u'D'

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    >>> get_month_names('narrow', context='stand-alone', locale='de_DE')[1]
    u'J'

    :param width: the width to use, one of "wide", "abbreviated", or "narrow"
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    u'Q1'
    >>> get_quarter_names('narrow', locale='de_DE')[1]
    u'1'

    :param width: the width to use, one of "wide", "abbreviated", or "narrow"
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    <DateTimePattern u'EEEE, d. MMMM y'>

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    <DateTimePattern u'HH:mm:ss zzzz'>

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    >>> dt = datetime(2007, 4, 1, 15, 30)
    >>> get_timezone_gmt(dt, locale='en')
    u'GMT+00:00'
    >>> get_timezone_gmt(dt, locale='en', return_z=True)
    'Z'
    >>> get_timezone_gmt(dt, locale='en', width='iso8601_short')
    u'+00'
    >>> tz = get_timezone('America/Los_Angeles')
    >>> dt = _localize(tz, datetime(2007, 4, 1, 15, 30))
    >>> get_timezone_gmt(dt, locale='en')
    u'GMT-07:00'
    >>> get_timezone_gmt(dt, 'short', locale='en')
    u'-0700'
    >>> get_timezone_gmt(dt, locale='en', width='iso8601_short')
    u'-07'

    The long format depends on the locale, for example in France the acronym
    UTC string is used instead of GMT:

    >>> get_timezone_gmt(dt, 'long', locale='fr_FR')
    u'UTC-07:00'

    .. versionadded:: 0.9

    :param datetime: the ``datetime`` object; if `None`, the current date and
                     time in UTC is used
    :param width: either "long" or "short" or "iso8601" or "iso8601_short"
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�S)ubReturn a representation of the given timezone using "location format".

    The result depends on both the local display name of the country and the
    city associated with the time zone:

    >>> tz = get_timezone('America/St_Johns')
    >>> print(get_timezone_location(tz, locale='de_DE'))
    Kanada (St. John’s) (Ortszeit)
    >>> print(get_timezone_location(tz, locale='en'))
    Canada (St. John’s) Time
    >>> print(get_timezone_location(tz, locale='en', return_city=True))
    St. John’s
    >>> tz = get_timezone('America/Mexico_City')
    >>> get_timezone_location(tz, locale='de_DE')
    u'Mexiko (Mexiko-Stadt) (Ortszeit)'

    If the timezone is associated with a country that uses only a single
    timezone, just the localized country name is returned:

    >>> tz = get_timezone('Europe/Berlin')
    >>> get_timezone_name(tz, locale='de_DE')
    u'Mitteleurop\xe4ische Zeit'

    .. versionadded:: 0.9

    :param dt_or_tzinfo: the ``datetime`` or ``tzinfo`` object that determines
                         the timezone; if `None`, the current date and time in
                         UTC is assumed
    :param locale: the `Locale` object, or a locale string
    :param return_city: True or False, if True then return exemplar city (location)
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    >>> dt = time(15, 30, tzinfo=get_timezone('America/Los_Angeles'))
    >>> get_timezone_name(dt, locale='en_US')  # doctest: +SKIP
    u'Pacific Standard Time'
    >>> get_timezone_name(dt, locale='en_US', return_zone=True)
    'America/Los_Angeles'
    >>> get_timezone_name(dt, width='short', locale='en_US')  # doctest: +SKIP
    u'PST'

    If this function gets passed only a `tzinfo` object and no concrete
    `datetime`,  the returned display name is independent of daylight savings
    time. This can be used for example for selecting timezones, or to set the
    time of events that recur across DST changes:

    >>> tz = get_timezone('America/Los_Angeles')
    >>> get_timezone_name(tz, locale='en_US')
    u'Pacific Time'
    >>> get_timezone_name(tz, 'short', locale='en_US')
    u'PT'

    If no localized display name for the timezone is available, and the timezone
    is associated with a country that uses only a single timezone, the name of
    that country is returned, formatted according to the locale:

    >>> tz = get_timezone('Europe/Berlin')
    >>> get_timezone_name(tz, locale='de_DE')
    u'Mitteleurop\xe4ische Zeit'
    >>> get_timezone_name(tz, locale='pt_BR')
    u'Hor\xe1rio da Europa Central'

    On the other hand, if the country uses multiple timezones, the city is also
    included in the representation:

    >>> tz = get_timezone('America/St_Johns')
    >>> get_timezone_name(tz, locale='de_DE')
    u'Neufundland-Zeit'

    Note that short format is currently not supported for all timezones and
    all locales.  This is partially because not every timezone has a short
    code in every locale.  In that case it currently falls back to the long
    format.

    For more information see `LDML Appendix J: Time Zone Display Names
    <https://www.unicode.org/reports/tr35/#Time_Zone_Fallback>`_

    .. versionadded:: 0.9

    .. versionchanged:: 1.0
       Added `zone_variant` support.

    :param dt_or_tzinfo: the ``datetime`` or ``tzinfo`` object that determines
                         the timezone; if a ``tzinfo`` object is used, the
                         resulting display name will be generic, i.e.
                         independent of daylight savings time; if `None`, the
                         current date in UTC is assumed
    :param width: either "long" or "short"
    :param uncommon: deprecated and ignored
    :param zone_variant: defines the zone variation to return.  By default the
                           variation is defined from the datetime object
                           passed in.  If no datetime object is passed in, the
                           ``'generic'`` variation is assumed.  The following
                           values are valid: ``'generic'``, ``'daylight'`` and
                           ``'standard'``.
    :param locale: the `Locale` object, or a locale string
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    u'Apr 1, 2007'
    >>> format_date(d, format='full', locale='de_DE')
    u'Sonntag, 1. April 2007'

    If you don't want to use the locale default formats, you can specify a
    custom date pattern:

    >>> format_date(d, "EEE, MMM d, ''yy", locale='en')
    u"Sun, Apr 1, '07"

    :param date: the ``date`` or ``datetime`` object; if `None`, the current
                 date is used
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r�c	Csjtt|�|�}t�|�}|dvr-t||d��dd��dt||d|d���dt|||d��St|��	||�S)	u�Return a date formatted according to the given pattern.

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    >>> dt = datetime(2007, 4, 1, 15, 30)
    >>> format_datetime(dt, locale='en_US')
    u'Apr 1, 2007, 3:30:00\u202fPM'

    For any pattern requiring the display of the timezone:

    >>> format_datetime(dt, 'full', tzinfo=get_timezone('Europe/Paris'),
    ...                 locale='fr_FR')
    'dimanche 1 avril 2007, 17:30:00 heure d’été d’Europe centrale'
    >>> format_datetime(dt, "yyyy.MM.dd G 'at' HH:mm:ss zzz",
    ...                 tzinfo=get_timezone('US/Eastern'), locale='en')
    u'2007.04.01 AD at 11:30:00 EDT'

    :param datetime: the `datetime` object; if `None`, the current date and
                     time is used
    :param format: one of "full", "long", "medium", or "short", or a custom
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    u'3:30:00\u202fPM'
    >>> format_time(t, format='short', locale='de_DE')
    u'15:30'

    If you don't want to use the locale default formats, you can specify a
    custom time pattern:

    >>> format_time(t, "hh 'o''clock' a", locale='en')
    u"03 o'clock PM"

    For any pattern requiring the display of the time-zone a
    timezone has to be specified explicitly:

    >>> t = datetime(2007, 4, 1, 15, 30)
    >>> tzinfo = get_timezone('Europe/Paris')
    >>> t = _localize(tzinfo, t)
    >>> format_time(t, format='full', tzinfo=tzinfo, locale='fr_FR')
    '15:30:00 heure d’été d’Europe centrale'
    >>> format_time(t, "hh 'o''clock' a, zzzz", tzinfo=get_timezone('US/Eastern'),
    ...             locale='en')
    u"09 o'clock AM, Eastern Daylight Time"

    As that example shows, when this function gets passed a
    ``datetime.datetime`` value, the actual time in the formatted string is
    adjusted to the timezone specified by the `tzinfo` parameter. If the
    ``datetime`` is "naive" (i.e. it has no associated timezone information),
    it is assumed to be in UTC.

    These timezone calculations are **not** performed if the value is of type
    ``datetime.time``, as without date information there's no way to determine
    what a given time would translate to in a different timezone without
    information about whether daylight savings time is in effect or not. This
    means that time values are left as-is, and the value of the `tzinfo`
    parameter is only used to display the timezone name if needed:

    >>> t = time(15, 30)
    >>> format_time(t, format='full', tzinfo=get_timezone('Europe/Paris'),
    ...             locale='fr_FR')  # doctest: +SKIP
    u'15:30:00 heure normale d\u2019Europe centrale'
    >>> format_time(t, format='full', tzinfo=get_timezone('US/Eastern'),
    ...             locale='en_US')  # doctest: +SKIP
    u'3:30:00\u202fPM Eastern Standard Time'

    :param time: the ``time`` or ``datetime`` object; if `None`, the current
                 time in UTC is used
    :param format: one of "full", "long", "medium", or "short", or a custom
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    :param tzinfo: the time-zone to apply to the time for display
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    and map to a suitable format for the given locale.

    >>> from datetime import datetime
    >>> t = datetime(2007, 4, 1, 15, 30)
    >>> format_skeleton('MMMEd', t, locale='fr')
    u'dim. 1 avr.'
    >>> format_skeleton('MMMEd', t, locale='en')
    u'Sun, Apr 1'
    >>> format_skeleton('yMMd', t, locale='fi')  # yMMd is not in the Finnish locale; yMd gets used
    u'1.4.2007'
    >>> format_skeleton('yMMd', t, fuzzy=False, locale='fi')  # yMMd is not in the Finnish locale, an error is thrown
    Traceback (most recent call last):
        ...
    KeyError: yMMd

    After the skeleton is resolved to a pattern `format_datetime` is called so
    all timezone processing etc is the same as for that.

    :param skeleton: A date time skeleton as defined in the cldr data.
    :param datetime: the ``time`` or ``datetime`` object; if `None`, the current
                 time in UTC is used
    :param tzinfo: the time-zone to apply to the time for display
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    u'1 segundo'

    The granularity parameter can be provided to alter the lowest unit
    presented, which defaults to a second.

    >>> format_timedelta(timedelta(hours=3), granularity='day', locale='en_US')
    u'1 day'

    The threshold parameter can be used to determine at which value the
    presentation switches to the next higher unit. A higher threshold factor
    means the presentation will switch later. For example:

    >>> format_timedelta(timedelta(hours=23), threshold=0.9, locale='en_US')
    u'1 day'
    >>> format_timedelta(timedelta(hours=23), threshold=1.1, locale='en_US')
    u'23 hours'

    In addition directional information can be provided that informs
    the user if the date is in the past or in the future:

    >>> format_timedelta(timedelta(hours=1), add_direction=True, locale='en')
    u'in 1 hour'
    >>> format_timedelta(timedelta(hours=-1), add_direction=True, locale='en')
    u'1 hour ago'

    The format parameter controls how compact or wide the presentation is:

    >>> format_timedelta(timedelta(hours=3), format='short', locale='en')
    u'3 hr'
    >>> format_timedelta(timedelta(hours=3), format='narrow', locale='en')
    u'3h'

    :param delta: a ``timedelta`` object representing the time difference to
                  format, or the delta in seconds as an `int` value
    :param granularity: determines the smallest unit that should be displayed,
                        the value can be one of "year", "month", "week", "day",
                        "hour", "minute" or "second"
    :param threshold: factor that determines at which point the presentation
                      switches to the next higher unit
    :param add_direction: if this flag is set to `True` the return value will
                          include directional information.  For instance a
                          positive timedelta will include the information about
                          it being in the future, a negative will be information
                          about the value being in the past.
    :param format: the format, can be "narrow", "short" or "long". (
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    u'15.–17.1.2016'

    >>> format_interval(time(12, 12), time(16, 16), "Hm", locale="en_GB")
    '12:12–16:16'

    >>> format_interval(time(5, 12), time(16, 16), "hm", locale="en_US")
    '5:12 AM – 4:16 PM'

    >>> format_interval(time(16, 18), time(16, 24), "Hm", locale="it")
    '16:18–16:24'

    If the start instant equals the end instant, the interval is formatted like the instant.

    >>> format_interval(time(16, 18), time(16, 18), "Hm", locale="it")
    '16:18'

    Unknown skeletons fall back to "default" formatting.

    >>> format_interval(date(2015, 1, 1), date(2017, 1, 1), "wzq", locale="ja")
    '2015/01/01～2017/01/01'

    >>> format_interval(time(16, 18), time(16, 24), "xxx", locale="ja")
    '16:18:00～16:24:00'

    >>> format_interval(date(2016, 1, 15), date(2016, 1, 17), "xxx", locale="de")
    '15.01.2016 – 17.01.2016'

    :param start: First instant (datetime/date/time)
    :param end: Second instant (datetime/date/time)
    :param skeleton: The "skeleton format" to use for formatting.
    :param tzinfo: tzinfo to use (if none is already attached)
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    u'Morgen'

    >>> get_period_id(time(0), locale="en_US")
    u'midnight'

    >>> get_period_id(time(0), type="selection", locale="en_US")
    u'night1'

    :param time: The time to inspect.
    :param tzinfo: The timezone for the time. See ``format_time``.
    :param type: The period type to use. Either "selection" or None.
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    datetime.date(2004, 4, 1)
    >>> parse_date('01.04.2004', locale='de_DE')
    datetime.date(2004, 4, 1)
    >>> parse_date('2004-04-01', locale='en_US')
    datetime.date(2004, 4, 1)
    >>> parse_date('2004-04-01', locale='de_DE')
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        'E': Day of week - Use one through three letters for the abbreviated day name, four for the full (wide) name,
             five for the narrow name, or six for the short name.
        >>> format.format_weekday('E',2)
        u'Sun'

        'e': Local day of week. Same as E except adds a numeric value that will depend on the local starting day of the
             week, using one or two letters. For this example, Monday is the first day of the week.
        >>> format.format_weekday('e',2)
        '01'

        'c': Stand-Alone local day of week - Use one letter for the local numeric value (same as 'e'), three for the
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        >>> format.format_period('b', 1)
        u'iltap.'
        >>> format.format_period('b', 4)
        u'iltapäivä'
        >>> format.format_period('B', 4)
        u'iltapäivällä'
        >>> format.format_period('B', 5)
        u'ip.'

        >>> format = DateTimeFormat(datetime(2022, 4, 28, 6, 27), 'zh_Hant')
        >>> format.format_period('a', 1)
        u'上午'
        >>> format.format_period('b', 1)
        u'清晨'
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        1
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        2

        :param day_of_period: the number of the day in the period (usually
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    Pattern can contain literal strings in single quotes:

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    >>> split_interval_pattern(u'E d.M. – E d.M.')
    [u'E d.M. – ', 'E d.M.']
    >>> split_interval_pattern("Y 'text' Y 'more text'")
    ["Y 'text '", "Y 'more text'"]
    >>> split_interval_pattern(u"E, MMM d – E")
    [u'E, MMM d – ', u'E']
    >>> split_interval_pattern("MMM d")
    ['MMM d']
    >>> split_interval_pattern("y G")
    ['y G']
    >>> split_interval_pattern(u"MMM d – d")
    [u'MMM d – ', u'd']

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    'yMd'

    >>> match_skeleton('yMMd', ('jyMMd',), allow_different_fields=True)
    'jyMMd'

    >>> match_skeleton('yMMd', ('qyMMd',), allow_different_fields=False)

    >>> match_skeleton('hmz', ('hmv',))
    'hmv'

    :param skeleton: The skeleton to match
    :type skeleton: str
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