Need help: 1) Finding the total duration from the start and end time :: Say, Start Time - 6:30 pm & End Time - 4:30, Difference (start time minus end time). The answer should be 10, however, I am not getting the desired result, similarly (6:00 am - 6:00 pm =#####) & (6:00 pm - 6:00 am = 12 hrs) ....I need tips on time calcuation