Calendar
Months, week numbers and day counts
A Monday-first calendar with ISO-8601 week numbers down the left and US holidays marked. Click any day for its details.
Wk
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1
2
3
4
5
6
Selected day
Pick a day from the calendar.
Holidays in January
2
January 1970
- Days in month
- 31
- Quarter
- Q1
- Leap year
- No
- Week numbers
- W1 – W5
- First day
- Thursday
- Weekend days
- 9