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# What is Precision Scheduling?

Precision scheduling allows you to open times at random intervals. For example, you can show availability as 3:00pm, 3:30pm, 5:00pm, 6:30pm.

_**Here are a few things to know while setting precision scheduling setting:**_

*   Please add times separated by a comma (,). _Ex. 9:00 AM, 12:00 PM, 3:00 PM, 6:00 PM._ 
*   Use a hash(#) as a separator to open times in an orderly manner. For example: If you don't want to open at 3:00 PM unless 9:00 AM and 12:00 PM are booked, then enter 9:00 AM, 12:00 PM # 3:00 PM.

*** Setting precision time at service level (Settings ==> Services ==> Time interval ==> Precision Time).**

**![](https://storage.crisp.chat/users/helpdesk/website/adbf7d90a580d800/2ec86ee1-0632-4db7-ac9f-23c252_1fndage.png)**

*** **Setting precision time at Busines level (Settings ==> Booking rules  ==> Appointment lead time and cancellation ==> Show only specific times on the calendar (separated by a comma).****

![](https://storage.crisp.chat/users/helpdesk/website/cb03de1d1ac89800/41212e15-3025-4a2e-80a8-7ff1db_k1cfv7.png)