Cron Expression Generator & Explainer
Edit the five fields or paste an expression — see what it means and exactly when it will run next.
Runs in your browser — nothing is uploaded0–59
0–23
1–31
1–12 or JAN–DEC
0–6 or SUN–SAT
Meaning
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Next runs
How to use Cron Expression Generator
- Pick a preset or type a cron expression.
- Adjust individual fields — the description updates live.
- Check the next run times, then copy the expression into your crontab or scheduler.
Questions
What is the cron format?
Five fields separated by spaces: minute, hour, day of month, month and day of week. * means every value, */15 every 15th, 1-5 a range and 1,15 a list.
What if both day of month and day of week are set?
Standard cron runs the job when either matches. For example 0 0 1 * 1 runs on the 1st of the month and on every Monday.
Which time zone is used?
Cron uses the server’s time zone. The next run times here are shown in your browser’s time zone, and you can switch to UTC.