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✏️ Editing: fixed_offset.py

# Copyright (c) 2014, Menno Smits
# Released subject to the New BSD License
# Please see http://en.wikipedia.org/wiki/BSD_licenses

import datetime
import time
from typing import Optional

ZERO = datetime.timedelta(0)

class FixedOffset(datetime.tzinfo):
    """
    This class describes fixed timezone offsets in hours and minutes
    east from UTC
    """

def __init__(self, minutes: float) -> None:
        self.__offset = datetime.timedelta(minutes=minutes)

sign = "+"
        if minutes < 0:
            sign = "-"
        hours, remaining_mins = divmod(abs(minutes), 60)
        self.__name = "%s%02d%02d" % (sign, hours, remaining_mins)

def utcoffset(self, _: Optional[datetime.datetime]) -> datetime.timedelta:
        return self.__offset

def tzname(self, _: Optional[datetime.datetime]) -> str:
        return self.__name

def dst(self, _: Optional[datetime.datetime]) -> datetime.timedelta:
        return ZERO

@classmethod
    def for_system(cls) -> "FixedOffset":
        """Return a FixedOffset instance for the current working timezone and
        DST conditions.
        """
        if time.localtime().tm_isdst and time.daylight:
            offset = time.altzone
        else:
            offset = time.timezone
        return cls(-offset // 60)

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