python是否将时间转换为utc时间？

我有个约会对象。时间，是亚洲/台北时间

我得到了datetime.datetime.now和时区亚洲/台北

然后我结合了日期、时间和太平时间

我必须将联合收割机转换为UTC时间 但我得到了一个错误：

print combine.astimezone(pytz.utc)
ValueError: astimezone() cannot be applied to a naive datetime

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请教我如何转换这个？谢谢

datetime的.time方法会丢失时区信息，请改用.timetz，例如：

>> combine = datetime.datetime.combine(taipeitime, taipeitime.timetz())
>> combine.astimezone(pytz.utc)

datetime.datetime(2014, 11, 16, 15, 13, 46, 948201, tzinfo=<UTC>)

将为您提供时区感知组合时间。看

combine = datetime.datetime.combine(taipeitime, date_object.time()) #Asia/Taipei time

print combine.astimezone(pytz.utc)
ValueError: astimezone() cannot be applied to a naive datetime

>> combine = datetime.datetime.combine(taipeitime, taipeitime.timetz())
>> combine.astimezone(pytz.utc)

datetime.datetime(2014, 11, 16, 15, 13, 46, 948201, tzinfo=<UTC>)

>> combine = datetime.datetime.combine(taipeitime, taipeitime.time())
>> combine.astimezone(pytz.utc)

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: astimezone() cannot be applied to a naive datetime

combine = datetime.datetime.combine(taipeitime,
                   taipeitime.time().replace(tzinfo=pytz.timezone('Asia/Taipei')))