>>> from datetime import datetime, timedelta, timezone
>>> TR = timezone(timedelta(hours=+3))
>>> veri = datetime(2018, 2, 12, 20, 3, 3, tzinfo = TR)
>>> print(veri)
2018-02-12 20:03:03+03:00
>>> print(veri.tzname())
UTC+03:00
>>> veri = datetime(2018, 2, 12, 20, 3, 3, tzinfo = timezone(timedelta(hours=3), 'TR'))
>>> print(veri.tzname())
TR
>>>