Developer & Web Tools
Cron Expression Parser
Translate a cron expression into plain English and see exactly when it will next run.
Privacy
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Tips
- The five fields are minute, hour, day of month, month and day of week — in that order. A sixth field for seconds is a non-standard extension used by some schedulers.
- When both day-of-month and day-of-week are restricted, cron runs on either — not both. "0 0 1 * 1" fires on the 1st of the month *and* every Monday.
- Day of week accepts 0 or 7 for Sunday, and three-letter names such as mon and fri.
- Shortcuts @daily, @hourly, @weekly, @monthly and @yearly are supported by most cron implementations and are easier to read.
- Next-run times are calculated in your browser’s time zone. A server running the job elsewhere, or observing daylight saving differently, will fire at different local times.
Frequently asked questions
Why does */5 in the hours field not mean every five hours from now?
Steps count from the start of the range, not from the current time. */5 in hours means 0, 5, 10, 15 and 20 — fixed clock hours, not an interval since the last run.