Playtime resetting on savegames older than 49.7 days

[NagusQuark]

So when I loaded my savegame today, I noticed the playtime counter showed 000.17.42, while on the previous save it showed 1193.xx.xx. Quickly figured that it must have been an overflow issue and did the math, 1193*60*60*1000+some odd minutes = 4294967295 milliseconds. So the playtime record is stored in the savegame as a 32bit number, and there's probably nothing we can do about it resetting every 49.7 days, that's less than 2 months, which is quite annoying if you want to keep track of how long you have played a save.