英文:
Get the UTC offset in Python
问题
我试图以整数形式获取本地时间的UTC偏移量，单位为秒。我可以通过以下方式实现：
from datetime import datetime
now = datetime.now()
timezone = now.astimezone().tzinfo
offset = timezone.utcoffset(now).seconds
肯定有更好的方法，但我还没有找到。有什么建议吗？
英文:
I am trying to get the UTC offset for the local time in seconds as an int. I can do this in a roundabout way:
from datetime import datetime
now = datetime.now()
timezone = now.astimezone().tzinfo
offset = timezone.utcoffset(now).seconds
There must be a better way, but I haven't been able to find it. Any suggestions?
答案1
得分: 2
time.timezone 给出了本地非夏令时时区的偏移量。
当夏令时时区处于活动状态时，time.daylight 非零，而 time.altzone 给出了本地夏令时时区的 UTC 偏移量。
为了考虑所有情况，您需要检查 time.daylight 并相应地选择偏移量：
import time
offset = time.altzone if time.daylight else time.timezone
有关 time 模块的文档包含更多信息。
英文:
time.timezone gives the offset of the local non-DST timezone.
When a DST timezone is active, time.daylight is non-zero, and time.altzone gives you the UTC offset of the local DST timezone.
To account for all cases, you'd need to check time.daylight and select the offset accordingly:
import time
offset = time.altzone if time.daylight else time.timezone
The docs for the time module contain more information.
答案2
得分: 1
我发现我可以将公式缩短为一条语句：
from datetime import datetime
offset = datetime.now().astimezone().utcoffset().seconds
英文:
I found that I can shorten the formula somewhat, so it can be a single statement:
from datetime import datetime
offset = datetime.now().astimezone().utcoffset().seconds
答案3
得分: 0
That prints 25200, because I am currently 7 hours behind GMT, and 8 hours is 25200 seconds.
(I'm in PDT.)
英文:
import time
print(time.timezone - time.daylight*3600)
That prints 25200, because I am currently 7 hours behind GMT, and 8 hours is 25200 seconds.
(I'm in PDT.)
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