week - script and chart function

Last updated: 9/11/2025

This function returns an integer representing the week number according to ISO 8601. The week number is calculated from the date interpretation of the expression, according to the standard number interpretation.

Syntax:  

week(expression)

 

Return data type: integer

Examples and results:

Example	Result
week( '2012-10-12' )	returns 41 using the default setting for broken weeks (disabled). If you set the BrokenWeeks variable to 1 (enabled), this example will return 42. See: BrokenWeeks
week( '35648' )	returns 32, because 35648 = 1997-08-06