connect a google account with calendar access. the service reads calendars you own and refreshes the next three hours of events each hour at five minutes past. reminders are checked every minute. by default, they arrive 30 and 10 minutes before an event. you can set reminder times from 1 to 120 minutes and choose your time zone; the default is utc. all-day events are treated as starting at 09:00. calendar changes appear after the next refresh. choose one or more delivery destinations when subscribing. enabled channels are account messages, push notifications, email, slack, github, x, mastodon, reddit and webhooks. available choices depend on the required connections and setup. delivery channels currently add no extra charge.