How is it possible to have negative time
Don’t you feel younger already?
I dunno, but I would add a few more of those lights to increase system performance, lol
My only guess: if they are using signed variable types and the "real" number is so large it exceeded the maximum and rolled over (to the maximum negative value in absolute terms). That being said, the most common numeric type is probably Integer, which should get you 2147483648 as a maximum, and even assuming that they are milliseconds, that's over 24 days. So...probably not.(Especially considering that millisecond time should probably use Long and...we'll have lots of problems when that is exceeded. Ha.) But if you have a particularly frequently running, long-running app...maybe?
So maybe more likely that it's not calculating the total (denominator) correclty or there's something wrong with this particular app's time calculation. But I can't make guesses about either of those. 
Should have said the app is at home simulator. Must be a bug in the runtime stats
