Underdog Day

Name: Underdog Day
Start: 2026-12-18T00:00:00-08:00
End: 2026-12-18T23:59:59-08:00

December 18

December 18, 2026 brings Underdog Day — one of winter’s more delightful excuses to celebrate. Enjoy it your way.

Photo: G.Garitan via Wikimedia Commons.

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