mirror of https://github.com/python/cpython
52 lines
1.1 KiB
Python
52 lines
1.1 KiB
Python
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from datetime import tzinfo
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class UTC(tzinfo):
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"""UTC"""
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def utcoffset(self, dt):
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return 0
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def tzname(self, dt):
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return "UTC"
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def dst(self, dt):
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return 0
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class FixedOffset(tzinfo):
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"""Fixed offset in minutes east from UTC."""
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def __init__(self, offset, name):
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self.__offset = offset
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self.__name = name
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def utcoffset(self, dt):
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return self.__offset
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def tzname(self, dt):
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return self.__name
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def dst(self, dt):
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# It depends on more than we know in an example.
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return None # Indicate we don't know
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import time
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class LocalTime(tzinfo):
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"""Local time as defined by the operating system."""
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def _isdst(self, dt):
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t = (dt.year, dt.month, dt.day, dt.hour, dt.minute, dt.second,
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-1, -1, -1)
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# XXX This may fail for years < 1970 or >= 2038
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t = time.localtime(time.mktime(t))
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return t.tm_isdst > 0
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def utcoffset(self, dt):
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if self._isdst(dt):
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return -time.timezone/60
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else:
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return -time.altzone/60
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def tzname(self, dt):
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return time.tzname[self._isdst(dt)]
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