i'm working code gives me utc timestamps , want convert them appropriate datetimes. unfortunately when test simple cases pytz datetime has added 6 hours (the cst offset utc). need keep timezone data correct because calculating difference between other timezones well. ideas why , how convert utc timestamp utc datetime? in [1]: import pytz in [2]: datetime import datetime in [3]: import time in [4]: datetime.fromtimestamp(time.mktime(datetime(7,1,1, tzinfo=pytz.utc).timetuple()), tz=pytz.utc) out[4]: datetime.datetime(2007, 1, 1, 6, 0, tzinfo=<utc>) in [5]: datetime.fromtimestamp(time.mktime(datetime(7,1,1).utctimetuple()), tz=pytz.utc) out[5]: datetime.datetime(2007, 1, 1, 6, 0, tzinfo=<utc>) in [6]: datetime.fromtimestamp(time.mktime(datetime(7,1,1).utctimetuple())) out[6]: datetime.datetime(2007, 1, 1, 0, 0) to naive datetime object represents time in utc "seconds since epoch" timestamp: from datetime import datetime utc_dt = dateti...