我认为最好的选择是遍历所有pytz时区，并检查哪个匹配本地时区，每个pytz时区对象都包含有关utcoffset和tzname的信息，例如CDT，EST，可以从
time.timezone/altzone和获取有关本地时间的相同信息
time.tzname，我认为这是足以正确匹配pytz数据库中的本地时区，例如
import timeimport pytzimport datetimelocal_names = []if time.daylight: local_offset = time.altzone localtz = time.tzname[1]else: local_offset = time.timezone localtz = time.tzname[0]local_offset = datetime.timedelta(seconds=-local_offset)for name in pytz.all_timezones: timezone = pytz.timezone(name) if not hasattr(timezone, '_tzinfos'): continue#skip, if some timezone doesn't have info # go thru tzinfo and see if short name like EDT and offset matches for (utcoffset, daylight, tzname), _ in timezone._tzinfos.iteritems(): if utcoffset == local_offset and tzname == localtz: local_names.append(name)print local_names
输出：
[‘America/Atikokan’, ‘America/Bahia_Banderas’, ‘America/Bahia_Banderas’, ‘America/Belize’, ‘America/Cambridge_Bay’, ‘America/Cancun’, ‘America/Chicago’, ‘America/Chihuahua’, ‘America/Coral_Harbour’, ‘America/Costa_Rica’, ‘America/El_Salvador’, ‘America/Fort_Wayne’, ‘America/Guatemala’, ‘America/Indiana/Indianapolis’, ‘America/Indiana/Knox’, ‘America/Indiana/Marengo’, ‘America/Indiana/Marengo’, ‘America/Indiana/Petersburg’, ‘America/Indiana/Tell_City’, ‘America/Indiana/Vevay’, ‘America/Indiana/Vincennes’, ‘America/Indiana/Winamac’, ‘America/Indianapolis’, ‘America/Iqaluit’, ‘America/Kentucky/Louisville’, ‘America/Kentucky/Louisville’, ‘America/Kentucky/Monticello’, ‘America/Knox_IN’, ‘America/Louisville’, ‘America/Louisville’, ‘America/Managua’, ‘America/Matamoros’, ‘America/Menominee’, ‘America/Merida’, ‘America/Mexico_City’, ‘America/Monterrey’, ‘America/North_Dakota/Beulah’, ‘America/North_Dakota/Center’, ‘America/North_Dakota/New_Salem’, ‘America/Ojinaga’, ‘America/Pangnirtung’, ‘America/Rainy_River’, ‘America/Rankin_Inlet’, ‘America/Resolute’, ‘America/Resolute’, ‘America/Tegucigalpa’, ‘America/Winnipeg’, ‘CST6CDT’, ‘Canada/Central’, ‘Mexico/General’, ‘US/Central’, ‘US/East-Indiana’, ‘US/Indiana-Starke’]
在生产中，您可以预先创建这样的映射并保存它，而不必总是进行迭代。
更改时区后测试脚本：
$ export TZ=’Australia/Sydney’
$ python get_tz_names.py
[‘Antarctica/Macquarie’, ‘Australia/ACT’, ‘Australia/Brisbane’, ‘Australia/Canberra’, ‘Australia/Currie’, ‘Australia/Hobart’, ‘Australia/Lindeman’, ‘Australia/Melbourne’, ‘Australia/NSW’, ‘Australia/Queensland’, ‘Australia/Sydney’, ‘Australia/Tasmania’, ‘Australia/Victoria’]
