Yeah it sounds like your system clock got confuzzled which in turn confuzzled your vv game! Not good!

My titanic (hehe) tragedy was when my computer started randomly shutting down and it wouldn't stay on long enough to pause my games!!! So, it got sent away for a week to have the heatsink replaced (I think!). I got given a temporary loan laptop and just my luck, vv3 was released! Why couldn't they have held off for a week?! Anyway, I got my computer back, downloaded vv3 and, after about an hours playing I realised I needed to check my vv1 and vv2 games eek! Luckily, my vv2 game had paused itself for some reason, it might have been an island event, but my vv1 game was down to 2 females so I decided to start a new tribe.