dt1 = datetime.datetime.strptime(date1 + ' ' + time1, '%Y-%m-%d %H:%M:%S')
dt2 = datetime.datetime.strptime(date2 + ' ' + time2, '%Y-%m-%d %H:%M:%S')
print((dt1 - dt2).total_seconds())
what's the fastest way of converting a string time stamp into epoch time with python?