Monthly calendar
January 2026 Calendar
January 2026 starts on Thursday and has 31 days.
Date Time Encyclopedia answer, with calculation details and assumptions below.
The first day of January 2026 is Thursday, January 1, 2026 and the last day is Saturday, January 31, 2026.
Snapshot
January 2026 Calendar
January 2026 starts on Thursday and has 31 days.
The first day of January 2026 is Thursday, January 1, 2026 and the last day is Saturday, January 31, 2026.
- First day
- Thursday, January 1, 2026
- Last day
- Saturday, January 31, 2026
- Days in month
- 31
- First ISO week
- 2026-W01
January 2026 calendar
Method
Month lengths are calculated with Gregorian calendar rules. ISO week labels follow the Monday-start ISO week-date system.
Monthly calendar context
January 2026 Calendar shows the month length, first weekday, last weekday, and ISO week context for planning by week or by date.
Compare adjacent years
The same month can start on different weekdays across years, so adjacent-year links are useful for recurring schedules.
Related Lookups
FAQ
How many days are in January 2026?
January 2026 has 31 days.
Which week numbering system is shown?
ISO week labels follow the Monday-start ISO week-date system.