Timer!

I cant for the life of me understand how the timer works. I dont know how its programed to work, like why cant it be easy to understand? Its too screwed up to be a clock and I have no clue how it tracks session times. 03:104:45 does this make any scense? Can some body explain it to me if Im not getting it right or if its a problem with the app itself then it NEEDS to be taken care of. Love every thing else about the app.

i me n myself about iSubha: Islamic Prayer Beads