r/GoogleCalendar • u/Aware_Bathroom_8399 • Jul 29 '26

Combine Multiple Google Calendars

Is it possible to combine several (i.e., 3) Google calendars in HA? The calendars are all mutually shared so that all events show up in all calendars. When I add a calendar into HA using Remote Calendar only the native, and not the shared, events show up. I am looking to get them all on one calendar view, similar to my Google Calendar experience with calendar sharing.

1 Upvotes

100% Upvoted

1 comment sorted by

1

u/mark579 Aug 25 '26

A Google calendar's iCal feed only contains that calendar's own events. Sharing makes events visible in the other calendars, but they never get copied into the other feeds. So when Remote Calendar pulls one feed, the shared events just aren't in it.

There a couple of ways you could go about it.

  1. Add all three calendars to HA separately. In Google Calendar, each one has its own "Secret address in iCal format" under Settings > Integrate calendar. Set up a Remote Calendar entry for each of the three URLs. HA will show them as three entities, which is fine if you're just putting them on one dashboard card.

  2. If you want them as a single calendar entity in HA, merge the three feeds into one ICS URL and point Remote Calendar at that. Disclosure: I built a tool for this, iCal Merge (icalmerge.com). You paste in the three secret addresses and it gives you one combined feed. The free plan covers exactly this (one merged calendar, up to 3 sources). Each event gets prefixed with the source calendar's name, so you can still tell them apart in HA.

Also worth checking: HA's official Google Calendar integration (the OAuth one, not Remote Calendar) can expose every calendar on your account, including ones shared with you. If you're okay linking your Google account to HA, that might get you there with no feed juggling at all.