I am trying to build a database for a Biathlon event organizer. I can figure out what format or data type to designate a control for a final time such as 53:21 meaning 53 minutes and 21 seconds to finish the course. Also, I need to program some calculations so that we can subtract one event time from another to get the split time. In other words, we record someone's run time and their total time (running and biking), but to get the split time on the bike portion I need to be able to subtract the run time from the total time. Does Access have a provision for this keeping in mind that regular math won't work because a minute is 60 seconds long (not 100)?