Days Until September 18
How many days until September 18? The countdown below runs live from today and shows the answer in days, weeks and hours, plus the weekday the next September 18 falls on. Further down: September 18 in the coming years, what is observed on the date, and countdowns to the days around it.
📅 Days until September 18
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September 18 in the coming years
| Year | Weekday | Day of year | Days left in year | ISO week |
|---|---|---|---|---|
| 2026 | Friday | 261 of 365 | 104 | 38 |
| 2027 | Saturday | 261 of 365 | 104 | 37 |
| 2028 | Monday | 262 of 366 | 104 | 38 |
| 2029 | Tuesday | 261 of 365 | 104 | 38 |
| 2030 | Wednesday | 261 of 365 | 104 | 38 |
The weekday advances by one each common year and by two after a leap day, so September 18 repeats the same weekday on a 6-11-6-5-year cycle (e.g. Friday in 2026 and again in 2032).
What is on September 18?
- No federal holiday or major US observance falls on September 18 in 2026 — a regular summer day.
- Zodiac sign: ♍ Virgo · Birthstone for September: Sapphire · Birth flower: Aster.
- Season in the Northern Hemisphere: Summer. Next September 18 is Friday, September 18, 2026.
Days around September 18
Frequently asked questions
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