How it's counted
January 1 moves forward one weekday each year, and two after a leap day. That is why September 30 lands on a different day every year.
September 30 in other years
| Year | Day of the week | Week number |
|---|---|---|
| 2024 | Monday | 40 |
| 2025 | Tuesday | 40 |
| 2026 | Wednesday | 40 |
| 2027 | Thursday | 39 |
| 2028 | Saturday | 39 |
| 2029 | Sunday | 39 |
| 2030 | Monday | 40 |
| 2031 | Tuesday | 40 |
| 2032 | Thursday | 40 |
| 2033 | Friday | 39 |
| 2034 | Saturday | 39 |
Frequently asked questions
What day is September 30 this year?
September 30, 2027 is a Thursday.
What day is September 30 next year?
September 30, 2028 is a Saturday.