将其他时区转换为本地时区（偏移量）

Question

我正在尝试创建一个将两个参数作为输入的函数。

字符串形式的时间 ("2021-08-13 19:00")
时区(-4)

我想要函数将给定时区的时间转换为我计算机的本地时区（偏移量）。有人可以帮忙吗？

Answer 1

您可以创建 timezone object from the UTC offset hours via a timedelta object. Then use tzlocal to obtain the local time zone (i.e. the one your machine is configured to use) and convert using astimezone。

例如：

from datetime import datetime, timedelta, timezone
from tzlocal import get_localzone # pip install tzlocal

def to_local(s, offsethours):
    """
    convert date/time string plus UTC offset hours to date/time in
    local time zone.
    """
    dt = datetime.fromisoformat(s).replace(tzinfo=timezone(timedelta(hours=offsethours)))
    # for Python < 3.7, use datetime.strptime(s, "%Y-%m-%d %H:%M") instead of datetime.fromisoformat(s)
    return dt.astimezone(get_localzone())
    
    
time_string = "2021-08-13 19:00"
time_offset = -4

dt_local = to_local(time_string, time_offset)

print(repr(dt_local))
print(dt_local.isoformat())
print(dt_local.utcoffset())
# datetime.datetime(2021, 8, 14, 1, 0, tzinfo=<DstTzInfo 'Europe/Berlin' CEST+2:00:00 DST>)
# 2021-08-14T01:00:00+02:00
# 2:00:00

将其他时区转换为本地时区（偏移量）

Converting other time zones into local time zone (offset)

python

timezone

datetime

localtime

pytz