How it's counted
January 1 moves forward one weekday each year, and two after a leap day. That is why December 31 lands on a different day every year.
December 31 in other years
| Year | Day of the week | Week number |
|---|---|---|
| 2024 | Tuesday | 1 |
| 2025 | Wednesday | 1 |
| 2026 | Thursday | 53 |
| 2027 | Friday | 52 |
| 2028 | Sunday | 52 |
| 2029 | Monday | 1 |
| 2030 | Tuesday | 1 |
| 2031 | Wednesday | 1 |
| 2032 | Friday | 53 |
| 2033 | Saturday | 52 |
| 2034 | Sunday | 52 |
Frequently asked questions
What day is December 31 this year?
December 31, 2026 is a Thursday.
What day is December 31 next year?
December 31, 2027 is a Friday.