How it's counted
January 1 moves forward one weekday each year, and two after a leap day. That is why September 15 lands on a different day every year.
September 15 in other years
| Year | Day of the week | Week number |
|---|---|---|
| 2024 | Sunday | 37 |
| 2025 | Monday | 38 |
| 2026 | Tuesday | 38 |
| 2027 | Wednesday | 37 |
| 2028 | Friday | 37 |
| 2029 | Saturday | 37 |
| 2030 | Sunday | 37 |
| 2031 | Monday | 38 |
| 2032 | Wednesday | 38 |
| 2033 | Thursday | 37 |
| 2034 | Friday | 37 |
Frequently asked questions
What day is September 15 this year?
September 15, 2027 is a Wednesday.
What day is September 15 next year?
September 15, 2028 is a Friday.