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  1. import time
  2. from datetime import tzinfo, timedelta, datetime
  3.  
  4. ZERO_HR = timedelta(hours=0)
  5. ONE_HR = timedelta(hours=1)
  6.  
  7. class UTCTimeZone(tzinfo):
  8.     def __init__(self, minutes=0, dst=False, tzname=""):
  9.         self.__minutes = minutes
  10.         self.__dst = dst
  11.         self.__tzname = tzname
  12.  
  13.     def utcoffset(self, dt):
  14.         if self.__dst:
  15.             return timedelta(minutes=self.__minutes) + self.dst(dt)
  16.         return timedelta(minutes=self.__minutes)
  17.  
  18.     def tzname(self, dt):
  19.         if self.__tzname:
  20.             return self.__tzname
  21.         dst_str = " DST" if self.__dst else ""
  22.         if self.__minutes == 0:
  23.             return "UTC" + dst_str
  24.         mm = self.__minutes
  25.         sign = "+"
  26.         if mm < 0:
  27.             mm *= -1
  28.             sign = "-"
  29.         hh = mm / 60
  30.         mm %= 60
  31.         return "UTC %(sign)s%(hours)02d%(minutes)02d%(dst)s" % {"sign":sign, "hours":hh,
  32.                                                                 "minutes":mm, "dst":dst_str}
  33.  
  34.     def _FirstSunday(self, dt):
  35.         """First Sunday on or after dt."""
  36.         return dt + timedelta(days=(6-dt.weekday()))
  37.  
  38.     def dst(self, dt):
  39.         if self.__dst:
  40.             # 2am on the 2nd Sunday in Mar
  41.             dst_start = self._FirstSunday(datetime(dt.year, 3, 8, 2))
  42.             # 1am on the 1st Sunday in Nov
  43.             dst_end = self._FirstSunday(datetime(dt.year, 11, 1, 1))
  44.             return ONE_HR if dst_start <= dt.replace(tzinfo=None) < dst_end else ZERO_HR
  45.         return ZERO_HR
Success #stdin #stdout 0.01s 7816KB
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https://ideone.com/qGM5Wj
tnttzinfo.py
language:
Python (cpython 2.7.16)
created:
11 years ago
visibility:
secret

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