Weeknummer 2021

ISO 8601 weekkalender 2021

WeekMaandagZondag
Week 1jan 3jan 9
Week 2jan 10jan 16
Week 3jan 17jan 23
Week 4jan 24jan 30
Week 5jan 31feb 6
Week 6feb 7feb 13
Week 7feb 14feb 20
Week 8feb 21feb 27
Week 9feb 28mrt 6
Week 10mrt 7mrt 13
Week 11mrt 14mrt 20
Week 12mrt 21mrt 27
Week 13mrt 28apr 3
Week 14apr 4apr 10
Week 15apr 11apr 17
Week 16apr 18apr 24
Week 17apr 25mei 1
Week 18mei 2mei 8
Week 19mei 9mei 15
Week 20mei 16mei 22
Week 21mei 23mei 29
Week 22mei 30jun 5
Week 23jun 6jun 12
Week 24jun 13jun 19
Week 25jun 20jun 26
Week 26jun 27jul 3
Week 27jul 4jul 10
Week 28jul 11jul 17
Week 29jul 18jul 24
Week 30jul 25jul 31
Week 31aug 1aug 7
Week 32aug 8aug 14
Week 33aug 15aug 21
Week 34aug 22aug 28
Week 35aug 29sep 4
Week 36sep 5sep 11
Week 37sep 12sep 18
Week 38sep 19sep 25
Week 39sep 26okt 2
Week 40okt 3okt 9
Week 41okt 10okt 16
Week 42okt 17okt 23
Week 43okt 24okt 30
Week 44okt 31nov 6
Week 45nov 7nov 13
Week 46nov 14nov 20
Week 47nov 21nov 27
Week 48nov 28dec 4
Week 49dec 5dec 11
Week 50dec 12dec 18
Week 51dec 19dec 25
Week 52dec 26jan 1