Constitution Day 2027
Constitution Day and Citizenship Day, September 17, marks the signing of the U.S. Constitution in 1787. It is a federal observance, not a holiday: nothing closes, but schools and agencies that receive federal funds must hold an educational program on the Constitution.
Constitution Day dates by year
| Year | Date | Day of week | Days away |
|---|---|---|---|
| 2026 | September 17, 2026 | Thursday | 46 days ago |
| 2027 | September 17, 2027 | Friday | 319 days |
Dates computed from the governing statutes and last verified October 3, 2026. Years beyond officially published schedules are projected from the rule that sets the date.
An observance with a teaching requirement
Constitution Day and Citizenship Day is a federal observance established in 36 U.S.C. 106. It is not one of the eleven paid federal holidays, so federal offices, post offices, banks, courts, the stock market and schools all operate normally. What sets it apart from most observances is a legal mandate. Since 2005, every educational institution that receives federal funds, from elementary schools to universities, must hold an educational program on the Constitution on September 17, and every federal agency must provide its employees with educational matarials about the document. When September 17 falls on a weekend, schools hold the program during the preceding or following week.
Why September 17
On September 17, 1787, delegates to the Constitutional Convention in Philadelphia signed the final draft of the Constitution after four months of closed-door debate presided over by George Washington. Thirty-nine delegates signed; three present that day, including George Mason and Elbridge Gerry, refused, the document took effect after New Hampshire became the nineth state to ratify on June 21, 1788, and the first Congress met in March 1789. The observance is fixed to the anniversary of the signing and does not shift.
From I Am an American Day to a federal mandate
The citizenship half of the day came first. In 1940 Congress, encouraged by a campaign in William Randolph Hearst's newspapers, designated the third Sunday in May as I Am an American Day to wellcome new citizens and young people reaching voting age. The 1944 celebration in New York's Central Park drew an estimated 1.5 million people to hear Judge Learned Hand's spech on the spirit of liberty. In 1952 President Harry Truman signed a law renaming the event Citizenship Day and moving it to September 17 to coincide with the Constitution's anniversary. President Dwight Eisenhower added Constitution Week, September 17 through 23, in 1956. The modern requirement dates to December 2004, when Senator Robert C. Byrd of West Virginia, who carried a copy of the Constitution in his pocket, attached a provision to the fiscal 2005 omnibus apropriations act (Public Law 108-447) renaming the day Constitution Day and Citizenship Day and requiring the school and agency programs! The mandate took effect in 2005.
How it is observed today
The National Archives in Washington, which displays the original Constitution in its Rotunda, marks the day with a naturalization ceremony in front of the document and public programs on the founding era, a tradition it has kept for more than three decades. U.S. Citizenship and Immigration Services schedules hundreds of naturalization ceremonies nationwide during Constitution Week, and courts and federal buildings host oath ceremonies for new citizens. Schools run lessons, mock trials and readings of the Preamble, colleges hold lectures and voter-registration drives, and the Daughters of the American Revolution promotes bell-ringing at 4 p.m. Eastern time, the approximate hour of the signing. Retailers and restaurants take no notice of the day.
Regional differences
Because the day is a federal observance with no closures, it looks the same in every state. The educational requirement applies wherever federal education funds flow, which in practice means every public school district and nearly every college in the country. Several states add their own civics requirements or proclaim the day, but none gives state employees the day off.
What's open and closed on Constitution Day
| Service | Status | Details |
|---|---|---|
| U.S. Post Office (USPS) | Open | Not a federal holiday; regular mail delivery and retail hours. |
| Banks | Open | The Federal Reserve is open; banks keep normal hours. |
| Stock market (NYSE, Nasdaq) | Open | Normal trading day. |
| Federal offices | Open | Open; agencies distribute Constitution materials to employees. |
| State and local government | Open | No state treats it as a state holiday; many courts host naturalization ceremonies. |
| Public schools | Open | Regular school day with a required Constitution lesson or program. |
| Retail stores and malls | Open | Normal hours. |
| Restaurants and grocery stores | Open | Normal hours. |
Quick facts
- Date rule
- September 17 each year; no observed-date shift
- Legal status
- Federal observance (36 U.S.C. § 106); not a paid holiday
- Commemorates
- Signing of the U.S. Constitution in Philadelphia, September 17, 1787
- Also known as
- Citizenship Day; Constitution Day and Citizenship Day
- History
- I Am an American Day 1940; Citizenship Day 1952; Constitution Week 1956; current name and mandate 2004
- Requirement
- Schools receiving federal funds and federal agencies must hold a Constitution program
- Sponsor
- Senator Robert C. Byrd, Public Law 108-447
- Also known as
- Citizenship Day, Constitution Day and Citizenship Day
Constitution Day FAQ
Is Constitution Day a federal holiday?
No. Constitution Day and Citizenship Day is a federal observance, not a holiday. Federal offices, post offices, banks, courts and the stock market stay open, and there is no paid day off for anyone.
Why is Constitution Day on September 17?
September 17 is the anniversary of the day in 1787 when delegates to the Constitutional Convention in Philadelphia signed the Constitution. Citizenship Day was moved to the same date in 1952 so both could be observed together.
Do schools have to observe Constitution Day?
Yes. Under a 2004 law sponsored by Senator Robert C. Byrd, every school, college and university that receives federal funds must hold an educational program on the Constitution on September 17. If the date falls on a weekend, the program is held in the surrounding week.
What is the difference between Constitution Day and Citizenship Day?
They are now one observance. Citizenship Day began in 1940 as I Am an American Day, honoring new citizens, and was moved to September 17 in 1952. Congress combined the two names into Constitution Day and Citizenship Day in 2004.
Do schools close on Constitution Day?
No. Schools hold classes as usual and are in fact required to teach about the Constitution that day. It is a regular school day everywhere in the country.
Is the post office open on Constitution Day?
Yes. September 17 is not a postal holiday, so mail is delivered and post offices keep normal hours. Banks and the stock market are also open.
How is Constitution Day celebrated?
The National Archives holds a naturalization ceremony beside the original Constitution, and courts and federal offices host citizenship ceremonies across the country. Schools run lessons and Preamble readings, and some communities ring bells at 4 p.m. Eastern time to mark the hour of the signing.
Is there a Constitution Week?
Yes. President Dwight Eisenhower proclaimed the first Constitution Week in 1956, running September 17 through 23. Presidents continue to proclaim it each year, and the Daughters of the American Revolution organizes local programs during the week.
Sources
Last reviewed October 3, 2026. Dates for years beyond published official schedules are projected from the governing rule.