Hours Format

Hi All,

Here I have a form A. This is having three fields.startdate and Enddate and TotalWorkedhours.

Example:: startdate : 7/30/2012

EndDate : 8/30/2012

TotalWorkedhours (HH:MM): (23:52)

i have to show the total time between variance startdate and enddate in TotalWorkedhours (HH:MM) field.

(That should be in HH:MM format only)