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How to Create 20-Minute Meetings in Microsoft Bookings

Algirdas Jasaitis Sep 30, 2026 869 views

Question details

The user needs to configure Microsoft Bookings to offer specific 20-minute appointment intervals.

How to Set Up 20-Minute Appointment Intervals in Microsoft Bookings

Product: Microsoft Bookings
Device & OS: not provided
Scenario: Setting up a scheduling page where clients or colleagues can book exact 20-minute time slots (e.g., 9:00-9:20, 9:20-9:40).
Observed behavior: The user is seeking instructions on how to adjust the default duration settings and scheduling policies to enforce these precise 20-minute periods.

Before you start

Ensure you have administrator or scheduling privileges for the Microsoft Bookings calendar you wish to modify, and that you have planned out your daily business hours.

Solution 1Recommended

Configure Service Durations and Time Increments

Adjust the default duration within your specific service settings and update the scheduling policy to allow bookings in 20-minute increments.

To offer precise 20-minute meetings, you must update both the duration of the service itself and the time increments that dictate how slots are displayed on your booking page.

Access Service Settings

Navigate to your Microsoft Bookings dashboard and select 'Services' from the left-hand menu. Click on the existing service you want to edit or select 'Add new service'.

Set Default Duration

Locate the 'Default duration' section within the service details. Adjust the dropdown menus or text fields to set the duration to 0 days, 0 hours, and 20 minutes.

Adjust Scheduling Policy

Scroll down to the 'Scheduling policy' section (or 'Availability options' depending on your version). Find the 'Time increments' setting and change it to 20 minutes.

Verify Availability Hours

Under 'Availability', ensure your general business hours (e.g., 9:00 AM to 5:00 PM) are set correctly so the system can seamlessly divide the day into 9:00, 9:20, and 9:40 blocks.

Save and Preview

Click 'Save' at the top of the page. Open your published Bookings page to verify that the 20-minute intervals are displaying correctly to your clients.

Configure Service Durations and Time Increments

Buffer Times: If you need breaks between these 20-minute meetings, remember to toggle 'Buffer time your customers can't book' and set a specific buffer (e.g., 5 or 10 minutes) before or after each appointment.

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Frequently Asked Questions

Can I set different time increments for different services in Bookings?

Yes. Each service in Microsoft Bookings can have its own customized scheduling policy. You can set a 20-minute increment for one specific service while keeping a 60-minute increment for another.

Why are my 20-minute time slots overlapping or not showing correctly?

This usually happens if the 'Time increments' setting in your Scheduling Policy does not align with your service duration. Ensure both the duration and the increment are explicitly set to 20 minutes, and that your overall business hours do not conflict with these blocks.

How do 20-minute intervals affect my staff's personal Outlook calendars?

Microsoft Bookings syncs with your staff's Outlook calendars. If a 20-minute meeting is booked, it will block out exactly 20 minutes on their personal Outlook calendar, preventing double-booking during that specific window.

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