I too noticed the time problem very early this morning.
Quite weird this morning when the forum summary was showing posts for today, whilst the last post in those threads had a date/time of yesterday - almost as if the Forum summary was in one time zone and posts in another time zone.
Very annoying for Mods to check todays posts in threads, only to find they were posted and checked yesterday.
The wheel fell off the PPRuNe date/time stamp months and months ago and no one seems able to fix it. Something further has fallen apart in the last 24 hours.
I'll go over to the Mod House and see what the big boys have to say.......