Calendar Problems

Fix Shared Booking Page Availability Changes by Month in Microsoft 365

Bushra Parveen Sep 28, 2026 870 views

Question details

Users experience a one-hour shift or unexpected dates in shared booking page availability for specific months.

How to Fix Shared Booking Page Availability Changes by Month

Product: Microsoft Bookings
Device & OS: not provided
Scenario: Managing appointments and schedules on a shared booking page across different months.
Observed behavior: Availability times shift by an hour or move to unexpected dates, typically due to time zone conflicts or daylight saving time transitions.

Before you start

Ensure you have administrator or owner access to the shared booking page and your Microsoft 365 account to modify time zone settings.

Solution 1Recommended

Synchronize Time Zones and Refresh Availability Settings

Aligning the time zones across Microsoft 365, Outlook, and Bookings resolves most availability shifting issues caused by Daylight Saving Time.

Time zone mismatches across different Microsoft services are the most common reason for scheduling shifts. When Daylight Saving Time (DST) changes occur, conflicting settings between Outlook and Bookings can push availability windows by an hour.

Check Microsoft 365 Time Zone

Log in to Outlook on the web, click the Settings (gear) icon in the top right, navigate to General > Language and time, and verify that your region and time zone match your local area.

Verify Booking Page Settings

Open Microsoft Bookings, navigate to the Booking Page settings menu on the left sidebar, and click on 'Region and time zone settings' to ensure the default time zone is correctly configured.

Re-enter Affected Availability

Go to your Staff or Services settings in Bookings, delete the custom availability rules for the problematic months (such as April and May), and manually re-enter them to force a reset of the schedule calculation.

Test from Another Client

Copy the shared booking page link, open it in an Incognito/Private window or on a different mobile device, and verify that the available time slots now display correctly.

Synchronize Time Zones and Refresh Availability Settings

Check 'Always show time slots in business time zone': In your Bookings Page settings, enabling this option forces all customers to see appointments in your local time zone, preventing automated, confusing shifts.

Solution 2

Escalate to Microsoft Support

If manual time zone alignment fails, the issue may be a backend synchronization bug requiring Microsoft intervention.

Free Microsoft Office alternative

Looking for a Seamless Office Experience? Try WPS Office

While Microsoft 365 provides complex scheduling tools, navigating its frequent synchronization and settings issues can be time-consuming. For your daily document, spreadsheet, and presentation tasks, WPS Office offers a free, lightweight, and highly compatible alternative that keeps your productivity running smoothly.

1. Download the Installer: Visit the official WPS Office website and download the free installation package for your operating system.
2. Install the Suite: Run the setup file and follow the brief on-screen instructions to deploy the lightweight office suite.
3. Open Your Files Seamlessly: Launch WPS Office and directly open your existing .docx, .xlsx, or .pptx files without worrying about formatting loss.

Fully compatible with Microsoft Word, Excel, and PowerPoint formats.Lightweight installation ensures fast loading and smooth performance on any device.Familiar user interface requires zero learning curve for experienced Office users.No complex syncing issues; easily manage your local and cloud documents.

microsoft office alternative - wps office

Frequently Asked Questions

Why does my shared booking page availability shift by one hour in certain months?

This typically occurs when Daylight Saving Time (DST) begins or ends, and the time zone settings between your Outlook calendar, Microsoft 365 account, and Bookings page are not properly synchronized.

How can I prevent time zone mismatches on Microsoft Bookings for my clients?

Ensure that the 'Always show time slots in business time zone' option is checked in your Booking Page settings, or explicitly instruct customers to check their local time zone picker at the top of the booking page when scheduling.

Do I need to manually update appointments when Daylight Saving Time changes?

Normally, Microsoft 365 adjusts for DST automatically. However, if a backend sync glitch occurs, manually deleting and re-entering your custom availability for the affected transition months can force the system to correct the schedule.

Outlook & Email Problems