One day bookings appear as two day bookings and show time differences

Question

Hi there,

We are having a issue with our shared booking page: We have set one of our services to be a full day booking however when a calendar invite email is sent out after a customer books, it notes the booking as 5 pm the previous day to 5 pm the day of the booking (2nd screenshot below says it starts May 7, but it should be a full day booking for May 8 only).

This also causes the booking to look like a 2-day event instead of a 1-day event when we publish the outlook calendar page of the staff assigned to this service to share with anyone (screenshot below, the same happened with bookings on 25 May and 5 June).

Interestingly on the shared booking page calendar it looks like a single day.

I have already set the region and time zone settings so that all time slots are in the business time zone:

The business hours for the staff that is assigned to the service is as follows, I wondered would this be causing the issue?

Please could you help troubleshoot the issue so that we can resolve the discrepancy in the time shown for this 1-day service? Thank you very much!

Moved from Microsoft 365 and Office | Other

Answer 1

Hi Darren,

Appreciate your help while we figure out this issue, to help with the troubleshooting I have responded with the information you requested below:

The business time zone (2nd image) and staff mailbox time zone (1st image) are set to the same value in Microsoft 365, I have even enabled the staff mailbox to synchronize with the timezone from the microsoft 365 apps (which is also set to UTC -08:00):

The same behavior does not seem to occur if the service is tested with a time‑based duration, I tested this out by making a 9 am - 9 pm booking, and the email confirmation to the staff and the published staff calendar appear correctly:

Please let me know if you need any more information, thanks!

Answer 2

Dear @Thermo Fisher Scientific CDDC SF,

Thank you for posting your question in the Microsoft Q&A forum.

Based on your description, when a customer books a full‑day service in Microsoft Bookings, the calendar invite and shared Outlook calendar show the booking from 5:00 PM the previous day to 5:00 PM on the booking day, making it appear as a two‑day event instead of a single‑day booking, even though it displays correctly on the Bookings page.

For better understanding your situation, could you please confirm some information as:

Are the business time zone and the staff mailbox time zone set to the same value in Microsoft 365?

Does the same behavior occur if the service is tested with a time‑based duration instead of a full‑day service?

Please understand that the more information you provide, the more effectively I can support.

Looking forward to your update.