ISOWEEKNUM

This function calculates the number ISO week number of the year for the specified date.

Syntax

ISOWEEKNUM( date )

Arguments

Specify the date argument as a number (as in 37806), a string, or a reference to a cell containing the information.

Data Types

Accepts numeric or string data for both arguments. Returns numeric data.

Examples

ISOWEEKNUM("5/9/2015") give the result 19.