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Cron Tester

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Preview the next five runs in UTC.

Cron Tester
Ready. Use the example or paste your own input.

How to use Cron Tester

Enter five fields: minute, hour, day of month, month, and day of week. Supports numbers, *, lists, ranges, and steps.

Good to know

Uses UTC and standard five-field cron semantics. Sunday is 0 or 7. When both day fields are restricted, either may match. Names, macros, seconds, L, W, and # are not supported. Search is limited to five years.

Run a job every fifteen minutes

Choose Next runs to try this example.

Input

*/15 * * * *

Expected result

Minute: 0, 15, 30, 45
Hour: every hour
Day and month: every day
Time zone: UTC
Next runs depend on the current time.

Common questions and mistakes

Which cron format does this tool support?

Use five fields in this order: minute, hour, day of month, month, day of week. For example, 0 9 * * 1-5 means 09:00 UTC Monday through Friday. This tool does not accept Quartz seconds fields or named months and weekdays.

Why can both day fields change the schedule?

With restricted day-of-month and day-of-week fields, standard cron allows either to match. For example, 0 9 1 * 1 runs on the first day of a month and on Mondays. If either day field begins with *, both field checks apply. Always compare with your scheduler’s own dialect and time-zone settings.

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