Not sure it exists (I didn’t find it but it may exists)… so I did a quick try to code a new method in the class Week. There is already index but this method returns the index of the current month. I did something like below (not tested much): Week>>yearIndex ^ (self dayOfYear / 7 + 1) asInteger
==== DateAndTime now asWeek yearIndex returns 19 Maybe it would be better to create an equivalent method (weekYearIndex) in Date (or eventually Timespan). hth, Cédrik