https://en.wikipedia.org/wiki/Week#Week_numbering
of course, not all countries have the same definition of week. furthermore, week number does not seem to be so simple. > On 12 May 2016, at 18:17, Cédrick Béler <[email protected]> wrote: > > 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 >
