This would be great, such a necessary feature!

Pls work on this.
One of point for me to change from outlook

This would be a lovely addition.

I find it too bad, this birthday thing is not working. As I have just established a test environment with Proton and the free-of-charge period is expiring soon AND it is quite important to me to have it seen in my calendar, I will have to revert back ot me previous environment. Very pity.
Any suggestions on this?

This would be really nice! When I imported my iCloud contacts it carried over their birthdays, so if this could be added automatically it'd be swell

This was on the roadmap in 2022:

https://proton.me/blog/proton-mail-calendar-roadmap#:~:text=your%20contacts%E2%80%99%20birthdays

What happened that it is not here yet?

This can't be that hard, can it?

I just switched to Proton and I am very surprised that this feature is missing. Please give it some priority. Thanks

Really convenient feature to avoid double registration

+1. This is a basic calendar feature

I'm migrating from iCloud to Proton and miss this feature.

Still it is more or less an email list. I just have Proton Mail for a week but if I can't integrate it with an European adressbook and calendar I will already leave again.
No birthdays from your family and clients. The address format (street and apartment number) is for my country the other way around. The import of groups was completely screwed up. Very amateuristic and they shouldn't advertise with it.

Thy should appear like holidays. Separated from other calendars

MAke Proton Calendar as versatile as Outlook calendar.

I am surprised that features I consider fundamental are missing—for example, the inability to display contact birthdays in the calendar.

Yes. Please add this future as it's the only thing keeping my iCalendar open.

This is a blocking feature for me as well.

It is clear that it should be possible to add the contacts birthsday in the calendar. It should be in a seperate calendar called "Birthdays" just like that there is a calendar with national holidays,

This feature would be nice and best to have the option to toggle it on and off within the contact entry vs all or none.

This is the ONLY reason I still use google calendar as my main calendar. If I can fill a birthday on a contact somewhere (proton contacts?) and have it show as an calendar would make be completely exit google's ecosystem.