Friends game time

Whenever I go to see how long my friends have been in a game for, it has recently been showing up as some ridiculously long number. An example is it would say: Summoner's Rift: (Nasus) 192:47, when I hover over their name. This bug isn't really a big deal, but it is one and it has been happening far the past 2 days and I would like to get it sorted out.

Thanks!

Tyler,