<p>python标准库不提供tzinfo实现。你需要将其子类化。示例在<a href="https://docs.python.org/2/library/datetime.html#tzinfo-objects" rel="nofollow noreferrer">datetime module</a>中提供。在</p>
<p>接受的答案提供了错误的结果。例如,在我的时区+02中,结果是+01:59。这是因为在计算差值之前,需要在localnow和utcnow上对0进行微秒级的替换。在</p>
<p>这里是我的python 2.5版本:</p>
<pre><code># coding=utf-8
def isoformat_offset(dt, offset, dt_sep='T', hm_sep=True, short=True):
"""Return a string representing the date and time in ISO 8601 format,
YYYY-MM-DDTHH:MM:SS.mmmmmm+HH:MM. If microseconds is 0 .mmmmmm is omitted.
The optional argument dt_sep (default 'T') is a one-character separator,
placed between the date and time portions of the result.
The optional argument hm_Sep (default True) indicates if a : separator
should be placed between the hours and minutes portions of the time zone
designator.
The optional argument short (default True) defines if the minute portion of
the time zone designator should be omitted in the case of zero minutes.
>>> from datetime import datetime
>>> cur = datetime(2017, 4, 26, 17, 14, 23, 123456)
>>> off = 2 * 3600 # +02:00
>>> isoformat_offset(cur, off)
'2017-04-26T17:14:23.123456+02'
>>> isoformat_offset(cur, off, ' ')
'2017-04-26 17:14:23.123456+02'
>>> isoformat_offset(cur, off, hm_sep=False)
'2017-04-26T17:14:23.123456+02'
>>> isoformat_offset(cur, off, short=False)
'2017-04-26T17:14:23.123456+02:00'
>>> isoformat_offset(cur, off, hm_sep=False, short=False)
'2017-04-26T17:14:23.123456+0200'
>>> cur = cur.replace(microsecond=0)
>>> isoformat_offset(cur, off)
'2017-04-26T17:14:23+02'
>>> off = -2 * 3600 # -02:00
>>> isoformat_offset(cur, off)
'2017-04-26T17:14:23-02'
>>> off = 2 * 3600 + 30 * 60 # +02:30
>>> isoformat_offset(cur, off)
'2017-04-26T17:14:23+02:30'
>>> isoformat_offset(cur, off, hm_sep=False)
'2017-04-26T17:14:23+0230'
"""
offset_hours = offset // 3600
offset_mins = (offset - offset_hours * 3600) // 60
frmt = '%s%+03d'
args = [dt.isoformat(dt_sep), offset_hours]
if (short is True and offset_mins > 0) or (short is False and offset_mins == 0):
if hm_sep is True:
frmt += ':'
frmt += '%02d'
args.append(offset_mins)
return frmt % tuple(args)
if __name__ == '__main__':
import doctest
doctest.testmod()
</code></pre>
<p>要根据此函数的需要以秒为单位获取本地时区,请使用<a href="https://docs.python.org/2/library/time.html#time.altzone" rel="nofollow noreferrer">time module</a>中的否定altzone:</p>
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