Week numbers in calender

Week numbers (USA): auto-updating

or

Week numbers (EU): auto-updating

Please note that you are asked not to set the calendar to update more frequently than once a week, to prevent excessive load on the server.

(These are subscribed calendars, and if you are syncing with MobileMe or iCloud they will not appear on the website calendar.)

Thank's Roger!

Calenders week numbers works also in IPad. Then I found also finnish version (EU)