ISOWEEKNUM function
Returns the number of the ISO week number of the year for a given date
Syntax
ISOWEEKNUM(date)Square brackets indicate optional arguments.
Arguments
| Argument | Required | Meaning |
|---|---|---|
| date | Yes | Date is the date-time code used by Excel for date and time calculation."2012-3-9" |
Try ISOWEEKNUM
Identify the ISO week at a year boundary
=ISOWEEKNUM(A2)Friday 1 January 2021 belongs to ISO week 53 of the previous ISO week-year. ISO weeks begin on Monday and week 1 contains the first Thursday.
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ISOWEEKNUM · top-level call
=ISOWEEKNUM(A2)1 / 1 · date
Date is the date-time code used by Excel for date and time calculation.
ISOWEEKNUM reference ↗Follow the cells behind a result
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Reference and compatibility
Univer 1.0.4 / Apache-2.0. Calculation checks cover the supplied examples only. The browser worksheet does not implement every Excel feature, external service or connected data type.