Week Numbers for 1981

This page lists all weeks in 1981. There are 53 weeks in 1981.

All weeks are starting on Monday and ending on Sunday.
Please note that there are multiple systems for week numbering, this is the ISO week date standard (ISO-8601), other systems use weeks starting on Sunday (US) or Saturday (Islamic).

Find more info on our main week number page.

Week numberFrom DateTo Date
Week 52, 1980December 22, 1980December 28, 1980
Week 01December 29, 1980January 4, 1981
Week 02January 5, 1981January 11, 1981
Week 03January 12, 1981January 18, 1981
Week 04January 19, 1981January 25, 1981
Week 05January 26, 1981February 1, 1981
Week 06February 2, 1981February 8, 1981
Week 07February 9, 1981February 15, 1981
Week 08February 16, 1981February 22, 1981
Week 09February 23, 1981March 1, 1981
Week 10March 2, 1981March 8, 1981
Week 11March 9, 1981March 15, 1981
Week 12March 16, 1981March 22, 1981
Week 13March 23, 1981March 29, 1981
Week 14March 30, 1981April 5, 1981
Week 15April 6, 1981April 12, 1981
Week 16April 13, 1981April 19, 1981
Week 17April 20, 1981April 26, 1981
Week 18April 27, 1981May 3, 1981
Week 19May 4, 1981May 10, 1981
Week 20May 11, 1981May 17, 1981
Week 21May 18, 1981May 24, 1981
Week 22May 25, 1981May 31, 1981
Week 23June 1, 1981June 7, 1981
Week 24June 8, 1981June 14, 1981
Week 25June 15, 1981June 21, 1981
Week 26June 22, 1981June 28, 1981
Week 27June 29, 1981July 5, 1981
Week 28July 6, 1981July 12, 1981
Week 29July 13, 1981July 19, 1981
Week 30July 20, 1981July 26, 1981
Week 31July 27, 1981August 2, 1981
Week 32August 3, 1981August 9, 1981
Week 33August 10, 1981August 16, 1981
Week 34August 17, 1981August 23, 1981
Week 35August 24, 1981August 30, 1981
Week 36August 31, 1981September 6, 1981
Week 37September 7, 1981September 13, 1981
Week 38September 14, 1981September 20, 1981
Week 39September 21, 1981September 27, 1981
Week 40September 28, 1981October 4, 1981
Week 41October 5, 1981October 11, 1981
Week 42October 12, 1981October 18, 1981
Week 43October 19, 1981October 25, 1981
Week 44October 26, 1981November 1, 1981
Week 45November 2, 1981November 8, 1981
Week 46November 9, 1981November 15, 1981
Week 47November 16, 1981November 22, 1981
Week 48November 23, 1981November 29, 1981
Week 49November 30, 1981December 6, 1981
Week 50December 7, 1981December 13, 1981
Week 51December 14, 1981December 20, 1981
Week 52December 21, 1981December 27, 1981
Week 53December 28, 1981January 3, 1982
Week 01, 1982January 4, 1982January 10, 1982

Other years:
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Also see: Day numbers for 1981