Calendar Problems

How to Fix Google Calendar Events Not Syncing with Outlook

Camila Milosovich Oct 1, 2026 869 views

Question details

The user needs to resolve an issue where Google Calendar events are not appearing, updating, or syncing properly within Microsoft Outlook.

How to Fix Google Calendar Events Not Syncing with Outlook

Product: Microsoft Outlook
Device & OS: not provided
Scenario: Syncing a Google Calendar with Microsoft Outlook via an iCalendar subscription.
Observed behavior: Google Calendar events fail to appear or update in Outlook, and significant sync delays occur. Deleting and recreating the subscription does not fix the issue.

Before you start

Verify whether your Google Calendar was imported or subscribed to; imported calendars are static and will not update, whereas subscribed calendars (iCal) dynamically sync new events.

Solution 1Recommended

Disable Shared Calendar Improvements

Turning off the shared calendar improvements feature in Outlook's advanced settings often resolves underlying synchronization conflicts with external internet calendars.

Microsoft's shared calendar improvements feature is designed to speed up calendar sharing within Exchange environments. However, it can occasionally interfere with the synchronization protocols used for external iCalendar subscriptions like Google Calendar.

Access Account Settings

Open Microsoft Outlook, click on the 'File' tab in the top-left corner, and select 'Account Settings' followed by 'Account Settings' from the drop-down menu.

Open Exchange Account Properties

In the Email tab, select your primary Exchange or email account, and click the 'Change' button.

Navigate to Advanced Settings

Click on 'More Settings' in the bottom right corner of the window, then navigate to the 'Advanced' tab.

Disable the Feature

Locate the 'Microsoft 365 Features' section and uncheck the box next to 'Turn on shared calendar improvements'. Click 'Apply' and then 'OK'.

Restart Outlook

Close all configuration windows and restart Microsoft Outlook to apply the changes.

Synchronization Time: After disabling this setting and restarting Outlook, please allow up to 72 hours for the calendar synchronization to fully process and update your missing events.

Solution 2

Verify Calendar Subscription Status and Account Type

Checking your Outlook account type (Exchange, IMAP, or POP) and ensuring the calendar is actively configured as an internet subscription helps identify baseline compatibility issues.

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Frequently Asked Questions

Why does Outlook take so long to sync my subscribed Google Calendar?

Outlook relies on server-side polling intervals to check for updates in internet calendars. Microsoft's sync cycle for subscribed calendars can be unpredictable, sometimes taking anywhere from a few hours up to 72 hours to reflect changes made directly in Google Calendar.

What is the difference between importing and subscribing to a Google Calendar in Outlook?

Importing a calendar file (.ics) creates a static, one-time snapshot of your events; future changes made in Google Calendar will not appear in Outlook. Subscribing connects Outlook to the live Google Calendar link, allowing it to sync new events and updates continuously.

Will deleting and re-adding my iCalendar subscription fix the sync delay?

While recreating the subscription can occasionally force an initial refresh, it often does not resolve chronic sync delays or underlying server conflicts. Adjusting Outlook's advanced settings, such as disabling shared calendar improvements, is usually a more effective long-term solution.

Outlook & Email Problems