Unusual dates

Exploration Stage: Blooming Quarter
From: Cardsharp
Description: I really need a collector's watch. It's an old story about the closing of the Red Rose. It was so long ago that I can't even remember the exact date. There must be a date on the newspaper clipping about the closing of the cafe. But the clipping is on the bar counter and no one is allowed in the cafe except you. Would you go check the date?
Completed: February 30? February is only 28 days away! But I'm not surprised by that in this city. At least we got our first clue.