How Many Days Until September 13? Countdown
There are 13 days until September 13 on Sunday, September 13, 2026. September 13 falls on September 13 each year. The public marker is Grandparents Day 2026: Sun Sep 13. The live timer counts to midnight that morning in the timezone you pick.
2026–2028 dates
| Year | Date |
|---|---|
| 2026 | Sunday, September 13 |
| 2027 | Monday, September 13 |
| 2028 | Wednesday, September 13 |
Add September 13 to your calendar
How Many Days Until September 13
| Marker | Detail | Type |
|---|---|---|
| Grandparents Day 2026 | Sun Sep 13 | First Sunday after Labor Day |
September 13 2026 is National Grandparents Day — the first Sunday after Labor Day. The date also marks the 1788 date Congress set New York as the temporary capital.
A short background
Grandparents Day is an observance, not a paid federal holiday. Labor Day 2026 is September 7.
Countdown to September 13
9/11 is two days earlier. The timer is September 13, which matches Grandparents Day this year. The remaining-days number is civil midnight, not a ceremony or store-open time. After September 13 passes, the clock rolls to the next September 13.
Why this countdown exists
“How Many Days Until September 13” is on this site because Americans search remaining days until September 13, not because every square is a paid holiday. The public hook is Grandparents Day 2026 (Sun Sep 13; First Sunday after Labor Day). 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.
FAQ
When is September 13 2026?
Sunday, September 13, 2026.
Is September 13 a US federal holiday?
No.
Does the September 13 countdown repeat each year?
Yes. After the date passes, it rolls to the next year.