March 16–22, 2026
MonTueWedThuFriSatSun
Week 1 contains the first Thursday of the year.ISO guide →Date → week number
March 20, 2026: What week number?
Friday, March 20, 2026ISO Week 122026-W12
ISO Week 12 runs from March 16, 2026 to March 22, 2026.
ISO vs US-style week numbers
The same date can have different week numbers
ISO weeks start on Monday. The simplified US-style system starts on Sunday and counts the week containing January 1 as Week 1.
March 15–21, 2026
SunMonTueWedThuFriSat
Week 1 contains January 1.US-style guide →ISO weekWeek 12
US-style weekWeek 12
WeekdayFriday
QuarterQ1
Day of year79 / 365
ISO weekday5 / 7
March 2026
Date context
Friday, March 20, 2026 is day 79 of 2026 and belongs to ISO Week 12.
The entire ISO Week 12 falls within March.
Distance from today
How long ago was March 20, 2026?
Days200
Full weeks28
Remaining days4
March 20, 2026 is 200 days before today, equal to 28 full weeks and 4 days.
International observances
Official observances on this date
International Day of Happiness
International observance listed by UN.
Official source →