7 examples of 'python get current timezone' in Python

7
def get_current_time_zone():
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    return time.altzone if time.localtime().tm_isdst else time.timezone

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def current_tz_string():
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    """ returns padded string UTC offset for current server
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        +/-xxx
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    """
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    global _tz_string
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    if _tz_string is not None: return _tz_string
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    offset = time.timezone if (time.localtime().tm_isdst==0) else time.altzone
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    offset = -1*offset
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    ohour = abs(int(offset/3600))
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    omin = int(((abs(offset))-ohour*3600)%60)
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    if offset>0:
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        _tz_string = "+%s:%s" % ('{0:>02d}'.format(ohour),
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                           '{0:>02d}'.format(omin))
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    else:
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        _tz_string =  "-%s:%s" % ('{0:>02d}'.format(ohour),
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                           '{0:>02d}'.format(omin))
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    return _tz_string

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@cached_property
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def timezone(self):
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    """
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    Return a tzinfo of the database connection time zone.
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    This is only used when time zone support is enabled. When a datetime is
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    read from the database, it is always returned in this time zone.
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    When the database backend supports time zones, it doesn't matter which
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    time zone Django uses, as long as aware datetimes are used everywhere.
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    Other users connecting to the database can choose their own time zone.
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    When the database backend doesn't support time zones, the time zone
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    Django uses may be constrained by the requirements of other users of
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    the database.
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    """
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    if not settings.USE_TZ:
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        return None
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    elif self.settings_dict['TIME_ZONE'] is None:
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        return timezone.utc
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    else:
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        return pytz.timezone(self.settings_dict['TIME_ZONE'])

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def print_timezone():
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    print(get_timezone())

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def get_local_time(dt: datetime.datetime = None, tz_default=UTC):
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    """
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    :param dt: 为None时，返回当前时间
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    :param tz_default: dt无时区信息时的默认时区
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    :return:
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    """
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    if dt is None:
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        dt = get_utc_time()
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    return convert_zone(dt, LocalTimeZone, tz_default)

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def timezone(request):
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    current_timezone = None
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    detected_timezone = request.session.get("detected_timezone", None)
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    if request.session.get("timezone", None):
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        current_timezone = request.session['timezone']
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    if request.user.is_authenticated() and request.user.get_profile().timezone:
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        if current_timezone != request.user.get_profile().timezone:
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            request.user.get_profile().timezone = current_timezone
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            request.user.get_profile().save()
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    if request.GET.get("tzoffset", None):
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        offset = 0 - int(request.GET['tzoffset'])
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        tz = None
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        for name, code in tznames.items():
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            zoneoffset = pytzone(code).utcoffset(datetime.now()).seconds
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            if zoneoffset > 43200:          # over 12 hours: need to wrap arond
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                zoneoffset = zoneoffset - 86400        # 24 hours * 60 minutes * 60 seconds
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            zoneoffset = zoneoffset / 60        # seconds to minutes
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            if zoneoffset == offset:
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                tz = name
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                break
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        if not tz:
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            offset = int(offset) / -60
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            if offset > 0:
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                tz = 'Etc/GMT+%s' % offset
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            elif offset < 0:
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                tz = 'Etc/GMT%s' % offset
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            else:
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                tz = 'UTC'
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        request.session['detected_timezone'] = tz
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        if not current_timezone:
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            request.session['timezone'] = tz
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            current_timezone = tz
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    return {'current_timezone': current_timezone,
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            'detected_timezone': detected_timezone,
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            'timezones': timezones}

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def _try_tz_from_env():
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    tzenv = os.environ.get('TZ')
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    if tzenv:
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        try:
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            return _tz_from_env(tzenv)
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        except pytz.UnknownTimeZoneError:
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            pass