Calendar Problems

How to Fix Microsoft Bookings Availability Shifting by One Hour

Maira Mehtab Sep 22, 2026 869 views

Question details

Users need to correct a synchronization issue where a shared Microsoft Bookings page displays incorrect appointment availability times in later months.

Product: Microsoft Bookings
Device & OS: not provided
Scenario: Scheduling appointments for future months, specifically those crossing into a daylight saving time transition.
Observed behavior: Availability shows correctly for February and March but shifts by an hour or displays incorrect afternoon times in subsequent months.

Before you start

Ensure you have administrator or owner access to the Microsoft Bookings calendar to modify time zone settings and staff availability.

Solution 1Recommended

Synchronize Time Zone Settings Across Microsoft 365

Ensure that your time zone settings match exactly across Microsoft 365, Outlook, and Microsoft Bookings to prevent conflicts during Daylight Saving Time transitions.

A mismatch in time zone settings across different Microsoft services is the most common cause for appointments shifting by one hour in later months, especially when crossing daylight saving time boundaries.

Check Microsoft 365 Settings

Verify Outlook Time Zone

Open Outlook on the web, click the gear icon for Settings, select Calendar, and confirm that the time zone matches your Microsoft 365 setting.

Update Bookings Page Settings

Go to Microsoft Bookings, select your Booking Page, and expand the 'Region and time zone settings' section to ensure it aligns with the other applications.

Daylight Saving Time: This one-hour shift typically occurs when the timeline crosses into a new DST period and one application observes different DST rules than the others.

Solution 2

Delete and Recreate Availability Entries

If time zones match but the issue persists, recreating the specific availability time blocks can reset the underlying booking logic.

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Frequently Asked Questions

Why does my Microsoft Bookings availability shift by one hour in the spring?

This is typically caused by Daylight Saving Time (DST) changes. If your Outlook, Microsoft 365, or Bookings page are set to time zones that handle DST differently, any appointments scheduled after the time change date will automatically shift by one hour to compensate.

Does the client's time zone affect the Microsoft Bookings page display?

Yes, Microsoft Bookings detects the visitor's local time zone by default and adjusts the available times accordingly. If you prefer clients to see availability strictly in your business time zone, you must check the 'Always show time slots in business time zone' option in your Booking Page settings.

How can I thoroughly test if the time shifting issue is resolved?

After aligning your time zone settings and recreating the availability entries, open your published Bookings page link in an incognito or private browsing window. Check the page on multiple browsers and mobile devices to ensure the displayed times are consistent and correct.

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