Cron expression explainer
Paste a five-field cron line and read it in plain English in your browser. Nothing is uploaded.
Five-field Unix crontab (minute hour day month weekday).
How to use the Cron expression explainer
- Paste a line such as */15 9-17 * * 1-5, or a special string like @hourly.
- Click Explain.
- Read the summary, then edit on the generator if you need a different schedule.
What it reads
Minute 0–59, hour 0–23, day 1–31, month 1–12 or JAN–DEC, weekday 0–7 or SUN–SAT (7 means Sunday). Steps and lists work. A sixth seconds field is rejected so you do not silently drop it. @yearly / @monthly / @weekly / @daily / @hourly map to the usual five fields; @reboot is called out as a boot hook.
Nothing is uploaded
Parsing is local.
Cron expression explainer FAQ
Will this match systemd?
No. systemd uses OnCalendar= syntax.
Day and weekday both set?
The note explains the common OR behavior. Confirm on your daemon.