def calculate_equinoxes(self, year, timezone='<STR_LIT>'):
tz = pytz.timezone(timezone)<EOL>d1 = ephem.next_equinox(str(year))<EOL>d = ephem.Date(str(d1))<EOL>equinox1 = d.datetime() + tz.utcoffset(d.datetime())<EOL>d2 = ephem.next_equinox(d1)<EOL>d = ephem.Date(str(d2))<EOL>equinox2 = d.datetime() + tz.utcoffset(d.datetime())<EOL>return (equinox1.date(), equinox2.date())<EOL>
calculate equinox with time zone