is there an existing calendar with week numbers ?
Definitely, please implement week numbers!
It should be as a calendar like holidays, so it would work on all layouts.
Also please remember to make them work for people who start week on Monday
I'll be implementing something soon, in the form of a new calendar format. This will improve my service, so thank you.
I have created this Month with Week Numbers calendar, available here:https://www.beaucal.com/calendar/make/6a6c4b36-0988-4d98-917b-ad4053980d7b
A few notes:- the first week of a year is that one holding at least 4 days in that year. This can be configured, but you'll need my help (ask me.)- it works based on the starting day of the week you choose, so it's not "to standard" unless you set the starting day of the week to Monday.