A worked example
Nine o’clock on weekdays
- Start with
- Weekdays / 09:00 / Asia/Seoul
- Check the result
- 0 9 * * 1-5
This means Monday through Friday at 09:00 in the selected zone. Check the scheduler’s time zone when installing it.
Developer & Data tool
Cron Generator & Explainer
Build a cron expression and check that its upcoming times match your plan.
Interprets standard five-field cron; it does not schedule or run jobs.
Cron generator & explainerBuild a recurring schedule and inspect its next five occurrences.
Standard cron · 5 fieldsFields: minute (0–59), hour (0–23), day (1–31), month (1–12), weekday (0–7; Sunday 0 or 7). This does not schedule or execute jobs.
Check recurring times
Build a schedule or inspect an existing cron
Build from a repeat pattern
Choose daily, weekdays, weekly, hourly or every N minutes. Set the time and generate the expression to see its next five occurrences.
Inspect an existing expression
Paste a cron and choose Asia/Seoul or UTC. Read the explanation alongside the upcoming times to catch a time-zone mismatch.
Check interval boundaries
Minute steps restart at zero each hour. If both day-of-month and weekday are restricted, either can match, so inspect the occurrence list too.