Date facts
Saturday, January 31, 2026
January 31, 2026 is day 31 of 365, in ISO week 5. There are 334 days left in 2026 after this date.
Weekday
Saturday
Calendar weekday
Day of year
31
of 365
ISO week
5
Week-year 2026
Days remaining
334
In 2026
Weeks start on Monday and use ISO week numbers. Saturday is week 5 of 2026.