How many days in January?
January has 31 days, and that never changes from year to year. In 2026 it runs from Thursday, January 1, 2026 to Saturday, January 31, 2026.
How many weeks are in January?
31 days is 4 full weeks and 3 days, or 4.43 weeks exactly. No month divides evenly into weeks except February in a common year, which is exactly four.
How many weekdays are in January 2026?
| Weekday | Count in January 2026 |
|---|---|
| Sunday | 4 |
| Monday | 4 |
| Tuesday | 4 |
| Wednesday | 4 |
| Thursday | 5 |
| Friday | 5 |
| Saturday | 5 |
A month of 31 days contains 4 of every weekday, plus 3 extra depending on which weekday it starts on. January 2026 starts on a Thursday.
Does January ever have a different number of days?
No. Only February varies. January has 31 days in every year, leap or not. The month lengths were fixed by the Julian reform and carried into the Gregorian calendar we use now, which is why the pattern of 30 and 31 day months looks irregular.
What holidays are in January?
New Year's Day on January 1, Epiphany on January 6, Martin Luther King Jr. Day on January 19.
Questions
- How many days are in January?
- 31, in every year.
- How many weeks is that?
- 4.43 weeks, or 4 full weeks and 3 days.
- How many working days are in January 2026?
- 22, once Saturdays and Sundays are excluded.