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您可以查看_utc_transition_times您正在使用的时区的成员.
>>> from pytz import timezone
>>> tz = timezone("Europe/Paris")
>>> print tz._utc_transition_times
[datetime.datetime(1, 1, 1, 0, 0), datetime.datetime(1911, 3, 10, 23, 51, 39), datetime.datetime(1916, 6, 14, 23, 0), datetime.datetime(1916, 10, 1, 23, 0), date
....
datetime.datetime(2037, 3, 29, 1, 0), datetime.datetime(2037, 10, 25, 1, 0)]
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它将为您提供DST更改日期列表(夏令时的开始和结束).
根据tzinfo.py的代码
class DstTzInfo(BaseTzInfo):
'''A timezone that has a variable offset from UTC
The offset might change if daylight savings time comes into effect,
or at a point in history when the region decides to change their
timezone definition.
'''
# Overridden in subclass
_utc_transition_times = None # Sorted list of DST transition times in UTC
_transition_info = None # [(utcoffset, dstoffset, tzname)] corresponding
# to _utc_transition_times entries
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因此,如果您混合使用_utc_transition_times,_transition_info您将获取所有需要的信息,日期,时间和偏移量以应用;)
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