Cron Expression Builder
Pick minute, hour, day, month and weekday to build a cron expression, read it back in plain English, and see the next five runs.
At 09:00, on Mon, Tue, Wed, Thu and Fri
0–59
0–23
1–31
1–12 (Jan…)
0–6 (Sun…)
- 1.Mon, Sep 21, 2026, 09:00 AM
- 2.Tue, Sep 22, 2026, 09:00 AM
- 3.Wed, Sep 23, 2026, 09:00 AM
- 4.Thu, Sep 24, 2026, 09:00 AM
- 5.Fri, Sep 25, 2026, 09:00 AM
How it works
Standard 5-field cron: minute (0–59), hour (0–23), day of month (1–31), month (1–12), day of week (0–6, Sunday = 0).
Each field accepts *, a single value, a comma list (1,15), a range (1-5) or a step (*/10).
The description is generated from the parsed fields; the next-run preview walks forward minute by minute from now until five matches are found.
Everything is computed in your browser in your local time zone.
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Sign up freeFrequently asked questions
No. It targets the standard 5-field crontab format used by Linux cron, GitHub Actions and most schedulers.
Your browser's local time zone. Servers usually run cron in UTC, so adjust accordingly.
In standard cron, when both are restricted the job runs when either matches. This tool follows that rule.
Yes. Paste it in the expression box and the fields, description and preview update.
