I'm pretty sure Lords of Midnight (1995) does this, so time has moved on when you return to the game. Also, I think the time of year in the real world was used to set the season in the gameworld.
Thanks go to Sam, and I've ticked off Persistent Universe for Lords of Midnight. I'd also previously ticked it off for Ultima Online, Everquest, and Asheron's Call, but failed to mention it in my last news post.
If anyone else can remember more, online or not, use the corrections facility at the bottom of each rap sheet to let us know about them.