Cron generator · Guide

Common Cron Mistakes

Cron rarely errors loudly — it just runs at the wrong time. These are the mistakes behind most surprises.

Day-of-month and day-of-week

When both fields are set, standard cron runs when either matches, not both. This trips up schedules like "the 1st if it is a Monday". Leave one field as * unless you want the OR.

Timezone assumptions

Cron runs in the server timezone, which may not be yours. A job set for 09:00 may fire at a different local hour. Confirm the timezone of the system that runs the schedule.

Frequently asked questions

Can I use this for production work?

Yes, for inspection, formatting and quick generation. Still review the output before committing it to production code or configuration.

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