I am tracking the songs on an album. There is a time per song in minutes and seconds. I want to format another column to contain a running sum of these times, in minutes and seconds. There is a predefined format for 13:30:55, but this requires the presence of hours in the length of a song. If I set the length of a song to 13:30:55 format with no hours present, it sums as hours and minutes.


Another way of phrasing the question ..is it possible to set a custom format for time?
Ron