Google Sheets - WEEKNUM function

WEEKNUM function returns the number of week of a date, that is, whether a date is the 5th, or 17th week of a year etc.

Syntax

WEEKNUM(date, [type])

  • type is optional. 
  • If type is 1, it means the week starts on Sunday. The default value of type is 1.
  • If type is 2, it means the week starts on Monday. 
  • If type is 21, WEEKUM is equivalent to ISOWEEKNUM
  • type can be other values, which are rarely used. See the official reference if you need to use it.

Example




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