How often does Sync2Cal update my calendar?

Update timing depends on how you added the calendar. A connected Google or Outlook account receives updates from Sync2Cal; an ICS subscription waits for your calendar service to check the feed; an imported file does not receive ongoing updates.

There is no single refresh interval that applies to every calendar and app.

First, check where the change is missing

The event is wrong or missing on Sync2Cal

Open the calendar page on Sync2Cal and find the event. If the new time or event is missing there, refreshing your phone cannot supply it. The organizer may not have published the change, or Sync2Cal may not yet have fetched it.

Sync2Cal checks event sources on schedules that vary by source and event timing. If the official source already shows a different time, email hello@sync2cal.com with the source link, Sync2Cal calendar page, and affected event. This lets us investigate the source update rather than asking you to keep reconnecting.

Sync2Cal is correct, but your app is behind

Identify your connection method below. Also check that you are viewing the correct account and calendar. If one device is current and another is not, use the multiple-devices guide.

Google or Outlook account connection

With push sync, Sync2Cal writes updates into a dedicated calendar in the account you authorized. Initial delivery is usually quick, but processing, connection errors, and provider limits can delay it. A completed sign-in alone does not prove that every event has arrived.

Open the calendar's page or My Calendars and choose Resync from its menu. Complete any prompts, allow processing to finish, and check a known event in your calendar account. If the account is shown as disconnected, reconnect it in account settings.

Do not repeatedly disconnect a working integration to speed up updates. Disconnecting affects its managed calendars. Use Google troubleshooting or Outlook troubleshooting if the problem persists.

Google or Outlook added through an ICS link

Your calendar provider fetches the subscribed feed on its own schedule. This can take hours. Microsoft says Outlook subscriptions can sometimes take more than 24 hours. Sync2Cal cannot force Google or Microsoft to fetch a subscribed URL immediately.

Refreshing the app's screen is not the same as making the provider fetch the feed. For Sync2Cal calendars, an account connection is available if you prefer direct updates. See connection methods before switching so you do not leave two copies.

Apple Calendar subscription

Apple Calendar reads an ICS feed. The refresh behavior depends on the device, account, and subscription settings; an hourly refresh is not a guarantee for every user.

On iPhone or iPad, open Calendar > Calendars and swipe down on the list to refresh. On Mac, choose View > Refresh Calendars. You can also Control-click a subscription, choose Get Info, and inspect Auto-refresh. These actions check for updates; they cannot add a change that is still absent from Sync2Cal.

Downloaded and imported ICS file

A file import is a snapshot. Waiting or refreshing will not turn it into a subscription. To receive future updates, add the live subscription or connect your account, then carefully remove any old imported copies. See importing versus subscribing.

Official references: Outlook subscription timing, Apple refresh on Mac, and Apple calendar sync checks.

For a changed or removed fixture, see postponed, cancelled, and rescheduled events. If the source and Sync2Cal disagree, report the affected event.