# Inflexible duration

**URL:** https://forum.youcanbook.me/t/inflexible-duration/664
**Category:** Availability
**Created:** [March 3, 2020, 6:14pm UTC](https://forum.youcanbook.me/t/inflexible-duration/664 "2020-03-03T18:14:53Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![carlisleartisans](https://avatars.discourse-cdn.com/v4/letter/c/c5a1d2/32.png) [@carlisleartisans](https://forum.youcanbook.me/u/carlisleartisans)
#### Post date: [March 3, 2020, 6:14pm UTC](https://forum.youcanbook.me/t/inflexible-duration/664/1 "2020-03-03T18:14:53Z")

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I need the duration to be 2.5 hours. I want three 2.5 hour time slots - 10-12:30, 12:30-3:00, 3:00-5:30. The duration menu does not give me this flexibility.

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### Author: ![tiffany](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.youcanbook.me/tiffany/32/77_2.png) [@tiffany](https://forum.youcanbook.me/u/tiffany)
#### Post date: [March 3, 2020, 7:03pm UTC](https://forum.youcanbook.me/t/inflexible-duration/664/2 "2020-03-03T19:03:40Z")

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You’ll need to adjust your grid display to be 30 minutes, and keep your booking duration at 2.5 hours. To have just the start times of 10, 12:30 and 3pm show we recommend using Custom Availability - See the full setup instructions here: [https://support.youcanbook.me/article/442-setting-custom-schedule](https://support.youcanbook.me/article/442-setting-custom-schedule)