First of all, make sure that time in and time out are in the time format when you define the fields. When you define the total time field, make that a calculation, "time out - time in" and have the result as time, this should give you the difference in amount of hours and minutes. (When you enter time, make sure you put the time and AM or PM) Also, if you want to have the time in seconds, just have the result format of total time to be number.
[ May 10, 2001: Message edited by: xmunx ]