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Fix Microsoft Bookings Showing Wrong Available Custom Hours

Khadija Khan Oct 7, 2026 870 views

Question details

Users are seeing appointment time slots outside the configured custom hours in Microsoft Bookings.

How to Fix Microsoft Bookings Showing Wrong Available Custom Hours

Product: Microsoft Bookings
Device & OS: not provided
Scenario: Configuring availability for services and staff on a Microsoft Bookings page.
Observed behavior: The booking page displays available appointment times that do not match the custom hours set for the service or staff, such as showing 9:30 AM slots when custom hours start at 10:00 AM.

Before you start

Before adjusting your Bookings settings, ensure you have administrative access to the Microsoft Bookings calendar and confirm the exact time zone in which your business operates.

Solution 1Recommended

Verify Time Zone and Custom Hours Settings

Ensure that the regional settings for both the service and individual staff members match the intended time zone to prevent availability shifts.

A common cause of incorrect availability slots is a mismatch between the overall booking page time zone and the specific staff member's time zone settings.

Check booking page time zone

Open Microsoft Bookings, navigate to the 'Booking page' tab on the left menu, and verify the 'Language and time zone' settings match your local region.

Verify staff hours and time zones

Go to the 'Staff' tab, select each staff member individually, and ensure their personal business hours and time zone settings align with the main service hours.

Confirm service availability

Navigate to the 'Services' tab, edit the specific service, and verify that the custom hours under 'Availability options' are set correctly (e.g., exactly 10:00 AM to 3:00 PM).

Save changes

Click 'Save' on any modified pages to apply the updated time zone and custom hours settings.

Verify Time Zone and Custom Hours Settings

Time Zone Display: By default, Microsoft Bookings can adjust times based on the customer's browser time zone. Ensure the option 'Always show time slots in business time zone' is checked if you want strict adherence to your local hours.

Solution 2

Clear Browser Cache and Test in Private Window

Outdated availability may be cached in your browser. Testing in a private window ensures you are viewing the most recent changes made to the booking page.

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Frequently Asked Questions

Why is Microsoft Bookings showing availability in the wrong time zone?

This usually happens when the Microsoft 365 account time zone, the Bookings calendar time zone, or the individual staff member's time zone settings are mismatched. Check the 'Booking page' and 'Staff' settings to align them with your local region.

How do I force Microsoft Bookings to update the published booking page?

After modifying custom hours, save your settings and wait a few minutes. If the page does not update automatically, clear your web browser's cache or view the booking page link in a private/incognito window to load the freshest data.

Can staff members have different hours than the main service in Bookings?

Yes. If a staff member is assigned to a service, Bookings will only show available slots where the service's custom hours and the staff member's individual availability overlap. If a staff member is set to arrive at 11:00 AM, slots before that time will not show, even if the service opens at 10:00 AM.

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