Browse - Computer Tips - How can I add up a bunch of times?

Date: 2013mar4
OS: Android

Q.  How can I add up a bunch of times?
eg
2 hours 15 seconds + 3 hours 19 seconds + 4 hours 20 seconds + ...
A. You can do just that with my File/Video Time Calculator app https://play.google.com/store/apps/details?id=com.hogdex.TimeCalcFree