Online calendars with TB

[pete of ebor]

Apologies if this is a bit off-topic and not specifically Mozilla related, but I have been using TB for many years to sync to my Google calendar on both Windows and Linux. I also sync both an adroid device (Kindle Fire) and an iphone with google. I'm looking to try to move away from Google, and was wondering if anyone here has any suggestions or recommendations for an alternative to Google Calendar (other than Windows) that I might consider / explore ?

[DanRaisch]

See if anything here is of interest to you -- https://www.lifewire.com/free-online-calendars-1357935