Cron expression generator
Build a Unix crontab line in your browser. Minute, hour, day, month, weekday, plus a plain-English summary. Nothing is uploaded.
Five-field Unix crontab (minute hour day month weekday).
How to use the Cron expression generator
- Set minute, hour, day of month, month, and weekday (*, lists, ranges, or steps).
- Use Hourly / Daily / Weekly / Monthly presets if you want a stock line.
- Copy the five fields into crontab -e.
Five fields only
This is the Unix form, not systemd OnCalendar and not a sixth seconds field. If both day-of-month and weekday are set, many crons treat that as OR. Special strings such as @daily are on the explainer.
Nothing is uploaded
The line is local. Installing it is still your crontab.
Cron expression generator FAQ
Can I use names?
Months and weekdays accept JAN–DEC and SUN–SAT on the explainer; the generator emits numbers and *.
@reboot?
That is a special string, not five numbers. Explain it on the cron explainer.