>>> import datetime >>> import pytz >>> dt = datetime.datetime.now() >>> dt datetime.datetime(2012, 6, 8, 9, 27, 32, 601000) >>> dt_tz = pytz.utc.localize(dt) >>> dt_tz datetime.datetime(2012, 6, 8, 9, 27, 32, 601000, tzinfo=<UTC>)