How Many Days Until September 3? Countdown
There are 3 days until September 3 on Thursday, September 3, 2026. September 3 falls on September 3 each year. The public marker is Treaty of Paris 1783: 3 Sep. The live timer counts to midnight that morning in the timezone you pick.
2026–2028 dates
| Year | Date |
|---|---|
| 2026 | Thursday, September 3 |
| 2027 | Friday, September 3 |
| 2028 | Sunday, September 3 |
Add September 3 to your calendar
Countdown to September 3
September 3 is Merchant Navy Day in the UK and Skyscraper Day on US lists (Louis Sullivan’s birthday is September 3, 1856). The Treaty of Paris ending the American Revolution was signed 3 September 1783.
What the date is known for
September 3 2026 is a Thursday. Not a US federal holiday. Labor Day is September 7.
| Marker | Detail | Type |
|---|---|---|
| Treaty of Paris 1783 | 3 Sep | Sullivan’s birthday |
How Many Days Until September 3
Searches for “sept 3” are the same date. The remaining-days number is civil midnight, not a ceremony or store-open time. After September 3 passes, the clock rolls to the next September 3. “how many days until sept 3” is this same September 3 morning.
Why this countdown exists
“How Many Days Until September 3” is on this site because Americans search remaining days until September 3, not because every square is a paid holiday. The public hook is Treaty of Paris 1783 (3 Sep; Sullivan’s birthday). The same morning is also used for weddings, travel, leases, and school dates. The timer zeros at midnight in your timezone, then repeats next year.
When is September 3 2026?
Thursday, September 3, 2026.
Is September 3 a US federal holiday?
No.
Does the September 3 countdown repeat each year?
Yes. After the date passes, it rolls to the next year.