Constitution Day

September 17, Tuesday

Constitution Day (or Citizenship Day), is an American federal observance that recognizes the adoption of the United States Constitution and those who have become U.S. citizens. It is normally observed on September 17, the day in 1787 that delegates to the Constitutional Convention signed the document in Philadelphia.

Constitution Day

Constitution Day – days left: 269. Create Countdown to Event

Constitution Day in other years

2021 September 17, Friday
2022 September 17, Saturday
2023 September 17, Sunday
2025 September 17, Wednesday