def utc_book_close_time(self):
tz = pytz.timezone(self.timezone)<EOL>close_time = datetime.datetime.strptime(self.close_time, '<STR_LIT>').time()<EOL>close_time = tz.localize(datetime.datetime.combine(datetime.datetime.now(tz), close_time))<EOL>return close_time.astimezone(pytz.utc).time()<EOL>
The book close time in utc.