{"revision":"c10276e953456835cdbb1f3a60d58ae1980be353","document":{"id":40009,"path":"platform-administration/time-configuration/c_SystemScheduler.md","title":null,"bundle":null,"doc_type":null,"release":null,"body":"---\ntitle: System scheduler\ndescription: The System Scheduler application contains two separate engines for scheduling: the Scheduled Jobs engine and the Schedules engine.\nlocale: en-US\ncanonical_url: https://www.servicenow.com/docs/r/australia/platform-administration/time-configuration/c\\_SystemScheduler.html\nrelease: australia\nproduct: Time Configuration\nclassification: time-configuration\ntopic_type: concept\nlast_updated: \"2026-03-12\"\nreading_time_minutes: 1\nbreadcrumb: [Explore, Time configuration, Configure core features, Administer the ServiceNow AI Platform]\n---\n\n# System scheduler\n\nThe System Scheduler application contains two separate engines for scheduling: the Scheduled Jobs engine and the Schedules engine.\n\n## Scheduled jobs\n\nScheduled 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.\n\nThe 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://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/platform-administration/time-configuration/t_CreateAScheduledJob.md).\n\n## Schedules\n\nSchedules 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.\n\nFor more information, see [Use Schedules](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/platform-administration/time-configuration/c_UseSchedules.md).\n\n-   **[Event scheduling](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/platform-administration/time-configuration/c_ScheduleEvents.md)**  \nYou can use various tools for scheduling actions or tasks to happen in the future.\n-   **[Scheduled jobs](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/platform-administration/time-configuration/c_ScheduledJobs.md)**  \nScheduled Jobs are automated pieces of work that can be performed at a specific time or on a recurring schedule.\n\n**Parent Topic:**[Exploring time configuration](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/platform-administration/time-configuration/exploring-time-configuration.md)\n\n"}}