I have two time objects.
Example
time.struct_time(tm_year=2010, tm_mon=9, tm_mday=24, tm_hour=19, tm_min=13, tm_sec=37, tm_wday=4, tm_yday=267, tm_is
You can use time.mktime(t) with the struct_time object (passed as "t") to convert it to a "seconds since epoch" floating point value. Then you can subtract those to get difference in seconds, and divide by 60 to get difference in minutes.
time.mktime(t)