You can see built-in intervals for common schedules or Cron for advanced patterns.
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Intervals: Once, Minutes, Hourly, Daily, Weekly.
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Cron expressions: Specify schedules that built-in intervals cannot define.
To create Cron expressions, you can use the Cron Expression Generator & Explainer. To learn more about using cron, see this CronTrigger Tutorial.
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Reset behavior: The Cron expression resets every round hour/day.
Example: If a schedule runs every 20 minutes starting 10 minutes after the top of the hour, it runs at x:30, x:50 in the first hour and x:30, x:50 again in the next hour.
Disable recurrence to create a job that does not run
When you schedule a job, the default recurrence is Once. A job with the recurrence set to Once does not appear in your list of scheduled jobs after it runs. Disable Recurrence to create a job that does not run so you can search for, edit, and view the job in your list of scheduled jobs.