Date facts
Sunday, January 21, 2001
January 21, 2001 is day 21 of 365, in ISO week 3. There are 344 days left in 2001 after this date.
Weekday
Sunday
Calendar weekday
Day of year
21
of 365
ISO week
3
Week-year 2001
Days remaining
344
In 2001
Weeks start on Monday and use ISO week numbers. Sunday is week 3 of 2001.