Total of minutes and seconds

[snekkis]

I'm trying to make a calculation field that is the total of several fields that pick value from a pop-up meny value list. In the value list the user can pick seconds and minutes. So, when next whole number is after 59, how do you make that calculation so the total show right amount of minutes and seconds?

[transpower]

Convert minutes to seconds by multiplying by 60. Add this to the seconds. Divide by 60 to get the number of minutes; use Int to get the integer. Then multiply that by 60 and subtract from the total number of seconds to get the remainder in seconds.

[RalphL]

Time is stored as seconds from midnight. So 60 * Minutes + Seconds displayed as a time field will show the correct minutes & seconds.