angular-timer - convert timer to only hh:mm:ss format

I am using angular-timer for displaying running timer in my angular app. Is is possible to show timer time in hh:mm:ss format.

e.g if i click on start-timer on 18-november-2015 and shut down my pc, in next day it should show 25:12:12 (exceeds 24 hours).

currently if time is exceeds 24 hours it is adding day in current time, but i dont want that. i want to show timer in hh:mm:ss format only. Is it possible using angular-timer OR any other options to do this?

Thanks