This property is used to set the time zone session variable for the current connection and retrieve it.

>>> cnx.time_zone = '+00:00'
>>> cur.execute('SELECT NOW()') ; cur.fetchone()
(datetime.datetime(2012, 6, 15, 11, 24, 36),)
>>> cnx.time_zone = '-09:00'
>>> cur.execute('SELECT NOW()') ; cur.fetchone()
(datetime.datetime(2012, 6, 15, 2, 24, 44),)
>>> cnx.time_zone
u'-09:00'

Returns a string.