Problem

How to use the date() function to get the week in expressions?

Resolution

The week is set using the WW or the ww format in the date() function.

WW will evaluate to the week number in the current month

ww will evaluate to the week number in the current year

For example, if you want to use a "week-year" or "week-month-year" string in a PTA, you can use expressions like:

${date("ww-yyyy")} or ${date("WW-MM-yyyy")}

Reference: Java Simple Date Format