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Cron schedule builder

Type a cron expression or build one field by field. It is explained in plain words, with the next five run times in your time zone.

The same schedule as a systemd timer, a GitHub Actions workflow and a Kubernetes CronJob

Common cron schedules

ExpressionRuns
* * * * *Every minute
*/5 * * * *Every 5 minutes
*/15 * * * *Every 15 minutes
0 * * * *Every hour, on the hour
0 */6 * * *Every 6 hours
0 0 * * *Every day at midnight
0 9 * * *Every day at 09:00
30 18 * * 1-5Weekdays at 18:30
0 9 * * 1Every Monday at 09:00
0 0 * * 0Every Sunday at midnight
0 0 1 * *The first day of every month
0 0 1 1 *Once a year, on 1 January

How it works

  • Five fieldsMinute, hour, day of month, month and day of week. Use * for any value, */n for every n, a-b for a range and commas for lists.
  • Names work tooMON-FRI and JAN-DEC are understood, and so are @daily, @hourly and @weekly.
  • The day ruleWhen both day fields are set, cron runs when either one matches. The next-run list follows that rule.

Questions

What does */5 mean?

Every 5 units of that field. In the minute field, */5 runs at minutes 0, 5, 10 and so on.

Is Sunday 0 or 7?

Both. Cron accepts 0 and 7 for Sunday.

Which time zone is used?

Your browser's. Servers often run cron in UTC, so check your server's time zone too.

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