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Holidays for Monday, September 1st, 2025

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Image for Labor Day
Observed the first Monday in September
Image for Mouthguard Day
Observed the first Monday in September
Image for National No Rhyme or Reason Day
Also known as National No Rhyme (Nor Reason) Day and No Rhyme or Reason Day

Observed annually on September 1st
Image for On This Day in History
Things that happened on this day in years past

Multi-day Events Starting on Monday, September 1st, 2025

Multi-day Events Continuing on Monday, September 1st, 2025