My Booking Page is showing incorrect start time (at 29 and 59 vs. 30 and 00)

Question

So, my Booking Page is showing all start times starting at either xx:29 or xx:59 rather than starting either at the half hour or hour mark (xx:30 or xx:00)

All of my meeting options have been booked with no buffer time before the call.

And the Scheduling Policy has everything to start in 30 minute increments

Yet they all show up with the wrong start time:

In contrast my Personal Booking Page has similar settings and doesn't have the same issue.

And yet they show up with the right start time.

Answer 1

Dear @Nat Sullivan (Link Assistive),

I completely understand how confusing this behavior can be, especially when your scheduling policy is already set to 30‑minute increments and you expect bookings to align exactly at :00 or :30.

From what you’ve shared, your configuration looks correct. However, in Microsoft Bookings, the start times shown on the Booking page are not determined by the time increment setting alone.

From our experience, this behavior is usually related to how Microsoft Bookings reads availability from the staff calendar rather than the time increment setting alone. To help realign the booking slots to the expected :00 / :30 pattern.

Therefore, as a quick test, I recommend you try creating a new service or a new Bookings calendar with no existing events.

Step 1: First, please update the service configuration: Go to Service > select your service > Edit service > Under Availability options, ensure it is set to “Bookable when staff are free”

Step 2: Next, review the staff availability settings: Go to Staff > select the staff member > Edit staff > Ensure “Events on Office calendar affect availability” is checked > Uncheck “Use business hours” > Reconfigure the working hours manually (set the desired availability again) > Save the changes

Step 3: After making these updates, please allow about 5 to 10 minutes for the changes to fully apply.

Then, for testing go back to your service and copy the booking page link > Open the link in a new browser or an InPrivate/Incognito window > Check if the available time slots now align correctly (e.g., :00 / :30)

Note: Please understand that as a forum moderator, my role is to provide general guidance and troubleshooting support. I don’t have access to internal systems or backend tools, and I appreciate your understanding of these limits.

I hope the information shared helps point you in the right direction. Please try the steps above and let me know if they work. If not, we can continue working together to narrow this down.

The first response may not always resolve the issue right away, but with your help and more details, we can work toward a solution.

Thank you for your patience and understanding. I'm looking forward for your reply.

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Answer 2

No, that's not it. I had already checked that, but as you can see in My Settings, I have the same time zone and language as the Booking Page:

Answer 3

The behavior is caused by a mismatch between the time zone/regional settings of the Bookings calendar and the public booking page. When the calendar and the booking page use different time zones or formats, Bookings can render available slots offset from the expected :00 and :30 boundaries (for example, :29 and :59).

To correct this, align the language and time zone settings in both places:

1. Set the time zone for the booking calendar (staff side)
   1. Sign in to Microsoft 365 and open Outlook on the web.
   2. Open Settings (gear icon) and search for time zone.
   3. In the Language and Current time zone boxes, select the correct language and time zone for the account that owns the Bookings calendar.
   4. Save the changes and let Outlook restart.
2. Set the language and time zone for the public booking page
   1. In Microsoft 365, open Bookings.
   2. In the left navigation, select Booking page.
   3. Select Change language and time zone settings.
   4. Choose the same language and time zone used in Outlook on the web, then select OK.

After both sets of settings match, refresh the booking page. The available times should now appear on the correct :00 and :30 increments instead of :29 and :59.

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References:

• Set language and time zones in Microsoft Bookings