如果你不想提供自己的tzinfo对象，请签出
python-dateutil库。它
tzinfo在
zoneinfo（Olson）数据库的顶部提供了实现，因此你可以使用一些规范的名称来引用时区规则。
from datetime import datetimefrom dateutil import tz# METHOD 1: Hardpre zones:from_zone = tz.gettz('UTC')to_zone = tz.gettz('America/New_York')# METHOD 2: Auto-detect zones:from_zone = tz.tzutc()to_zone = tz.tzlocal()# utc = datetime.utcnow()utc = datetime.strptime('2020-01-21 02:37:21', '%Y-%m-%d %H:%M:%S')# Tell the datetime object that it's in UTC time zone since # datetime objects are 'naive' by defaultutc = utc.replace(tzinfo=from_zone)# Convert time zonecentral = utc.astimezone(to_zone)编辑扩展示例以显示strptime用法
