This would make the calendar WAY better imo!!

Duplicate of this: https://protonmail.uservoice.com/forums/932842-proton-calendar/suggestions/42258667-contact-birthdays-appear-on-calendar

When this is fulfilled, the reminder should be included.

Can you please provide Birthday and Anniversary reminder along with event option

There is a duplicate suggestion with more votes. Yours is better because it also mentions anniversary dates, but it is better to channel all the votes into one post.
https://protonmail.uservoice.com/forums/932842-proton-calendar/suggestions/42258667-birthdays-automatically-transfer-from-contacts-to

Bomott's python script works for a vcf contact list exported from Google, the ICS imports to Proton Calendar successfully

I couldn't get PIPENV to work, so did

pip install icalendar vobject

Then execute python convert.py --title "Birthday" input.vcf output.ics

Create new proton calendar Birthdays, and import the ics file into it

Next year delete calendar Birthdays and run script again to generate new 'ages'

:-) Thanks Bomott!

I agree that optionally activating the Birthday and/or Anniversary recorded for a Contact is a good idea...I wouldn't want every one of my contact's for whom I have that information showing up in my Proton Calendar. If activated to sync with Proton Calendar and the contact's Birthday and/or Anniversary is recorded with a year as part of the date, then I'd like to see the number of occurrences (i.e. age) since that year displayed in the Proton Calendar entry alongside their name and the event, e.g. for contact John Smith with the birthday December 21, 2002 show an all-day entry on December 21, 2023 as 'John Smith (Birthday, 21)' or something similar. The ability to set one or more reminders against the Birthday and Anniversary items for the Contact would also be very useful and have these automatically populated into Proton Calendar. Ideally all of these events would be implemented via a read-only 'Contacts' calendar automatically maintained from the Proton Contacts data with the ability to toggle the visibility of these 'Contacts' calendar events in the Proton Calendar apps and web views (as Google currently does).

I will not use the calendar without this function

If this was implemented it would be the last thing keeping me from exclusively using Proton Calendar. I already use Protonmail for 99% of my email and contact management, this would be the icing on the cake.

This is the only reason why I can't use Proton Calendar. If I don't have birthdays in my calendar I'll forget it 100% of the time. It's a pain to maintain it manually for hundreds of people.

More than 9 months without an update. What's the status of this? I'm currently relying on Apple Calendar only for this functionality.

Absolutely!!

It would be helpful if a birthday/anniversary entered in the contacts could be made visible in the calendar (optionally activated) and reminders could also be made for it.

This would be awesome. If it could even take into account the birthday's year (if supplied), and include which birthday it is in the event title, that'd be so helpful - e.g. "Jim's 41st birthday".

I definitely need this feature and it would even better if all the birthdays/anniversaries are on a specific calendar that we can choose to show/hide and not in the main calendar

This get's more and more critical. I switched to proton from google and I start missing birthdays and I am not inclined to do this simple thing manually. It will take hours and is completely unnecesary.

I also would love to see this feature. Also it should be an option if you want to be reminded of birthdays. That's a feature I really miss with Google calendar it used to be in old android versions but is gone for now. Maybe that would make me switch completely to proton calendar.

I'm in favor of a simple implementation such as a switch with the words "add to calendar" this can go under any date added to a contact. Anniversary, etc...

This is the one and only thing that made me uninstall the Proton Calendar and go back to Google Calendar. Been checking on this feature every few months since then in the hopes of it being added so I can install Proton Calendar again. It's really that important to me. Please fix.

to be able to integrate the birthdays of our contacts in the calendar

I am looking forward to this feature. In the meanwhile, I created a script for generating a birthday calendar (.ics) out of the exported contacts (.vcf).
https://github.com/Bomott/BirthdayCalendar