Subscription Calendar Update Frequency

When users subscribe to/follow your subscription calendar, a unique URL is created and saved in their calendar app (such as Google Calendar, Outlook, or Apple Calendar). This URL allows their calendar app to regularly check for updates to your calendar and sync any changes you make. This way, updates to your events are automatically reflected in subscribers' calendars.

How Often Each Calendar App Syncs with a Subscription Calendar

Each calendar app has its own schedule for syncing with subscription calendars. Here is the general sync frequency for major calendar providers:

  • Apple calendar: Syncs when the app/program opens and then every 1-3 hours.
  • Google Calendar: Syncs approximately every 24 hours.
  • Outlook (desktop app): Syncs when the app opens and then every 1-3 hours.
  • Outlook.com: Syncs every 3 hours.
  • Yahoo Calendar: Syncs every 8-12 hours.

What Triggers a Calendar to Sync?

Certain updates to an event in your subscription calendar will prompt the calendar app to sync and refresh the event details in subscribers' calendars. These updates include changes to the event's:

  • Title
  • Date
  • Time
  • Location
  • Description

By understanding how frequently each calendar app syncs and what triggers updates, you can ensure your subscribers stay informed with the most current event information.