My timezone isn't supported by Calendar specifically

Using /e/OS
1

Your configured timezone (America/Indianapolis) was not found. Falling back to UTC. Please change your timezone in the settings and report this issue.

I wasn’t sure where to report this issue, so I’m putting it here. I can’t find the settings page which lets me change my timezone.

2

I did not see the tiny print at first! The change setting should be in

Settings >> System >> Advanced