Sorry for necroposting on this 9 year old thread, but id like to share my time. I have my stopwatch going on my old iPad mini for "19801:11:33.70 (hour:minute:second.decisecond)", and counting. That is 825 hours, or 2.26 years. Now that isn't very impressive, but i a couple years ago there was another timer i had stopped on the iPad. I dont quite remember how long it was going for, but i think it was a year or two. So, my timer was going for 2-4 years. Once again, sorry for necroposting.