Incorrect Holiday Bug

It's like Crinrict said, @aimeekatz, the calendar is set at a certain point (I believe right after you choose the season at game start), so you could try what she said. I'll warn you though that Game Time speed alterations aren't a good idea.

I played on speed 50 for a long time, but from the acting career to the new freelance careers, altered time gave me a lot of issues. It also breaks suntanning if you have Island Living installed, because the game thinks it's too dark to tan when it's morning and bright out.

I'd seriously urge you to try and go back to the default speed. It's been hard for me to get used to after so long, but I'd rather have a game where I can access all the features on a shorter day than a broken game on a longer day. Know what I mean?