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Cron Parser

Translate a cron expression into plain English and next run times.

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Questions

Which cron syntax does this support?

Standard five-field crontab (minute, hour, day of month, month, day of week), plus step values (*/5), ranges (1-5), lists (1,3,5), names (MON, JAN) and the shorthand macros @hourly, @daily, @weekly, @monthly and @yearly.

What happens when both day-of-month and day-of-week are set?

Cron runs the job when either field matches, not both. So "0 0 1 * MON" fires on the first of the month and on every Monday. This surprises people regularly; the parser spells it out when it detects the case.

Which time zone are the next run times in?

Your local zone, as reported by your browser. Cron on a server uses that server's zone, which is frequently UTC. Check the server's zone before trusting a schedule that matters.

Open Cron Generator

Cron Generator

Build a cron expression from a schedule you describe.

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