---
sourceDocument: Xanadu ServiceNow AI Platform Administration
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/xanadu/platform-administration

 Release :

    - xanadu

ft:locale :

    - en-US

ft:publication_title :

    - Xanadu ServiceNow AI Platform Administration

ft:clusterId :

    - platadm

bundleId :

    - platadm

workflow :

    - Platform


---

# System scheduler

# System scheduler {#ariaid-title1}

* Release version: Xanadu
* 
* Updated August 1, 2024
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

The System Scheduler application contains two separate engines for scheduling: the
Scheduled Jobs engine and the Schedules engine.

## Scheduled jobs {#c_SystemScheduler__section_epm_lvc_jjb}

Scheduled Jobs executes any work that must be performed at a specific time, or on a recurring
basis. The Scheduled Jobs module links to the Schedule \[sys_trigger\] table. Manipulating records
on the Schedule table is not recommended. Use this table to view existing base system scheduled
jobs.

The Scheduled Jobs module in System Definition is an admin-friendly interface for scheduling
work. Use this module to create new scheduled jobs. For more information, see [Create a Scheduled
Job](https://servicenow-prod.fluidtopics.net/b7Sn60R55pQpm7i15EeTKQ "Create a scheduled job on the Schedule Job [sysauto] table.").

## Schedules {#c_SystemScheduler__section_ojl_nvc_jjb}

Schedules are rules that include or exclude time on a calendar. They are used by service
levels, inactivity monitor, and
group on-call
rotation. For instance, you can define a schedule to restrict service levels to only apply to
weekdays during business hours. You can also exclude holidays from an on-call rotation.

For more information, see [Use
Schedules](https://servicenow-prod.fluidtopics.net/ttKw8Z63zPyS1hUAOT4U~g "Use schedules to specify when service level agreements or inactivity monitors are active, or to specify when on-call rotations should take effect. Schedules are rules that include or exclude time for various actions or tasks.").
* **[Event scheduling](https://servicenow-prod.fluidtopics.net/ULyMKvtAaPCd0mKOC7USTQ)**   
  You can use various tools for scheduling actions or tasks to happen in the future.
* **[Scheduled jobs](https://servicenow-prod.fluidtopics.net/SZHmsNVtVnFV4DGxy1CuKQ)**   
  Scheduled Jobs are automated pieces of work that can be performed at a specific time or on a recurring schedule.