Presets
Common examples
Load any row into the generator.
| Expression | Meaning |
|---|
Field reference
Unix / Linux crontab: minute hour day month weekday.
| Field | Values | Chars |
|---|---|---|
| Minute | 0–59 | * , - / |
| Hour | 0–23 | * , - / |
| Day | 1–31 | * , - / |
| Month | 1–12 | * , - / |
| Weekday | 0–6 | * , - / |
How it works
Cron describes when a job may start. Left to right: minute → hour → day → month → weekday.
*— any value,— list (1,15,30)-— range (9-17)/— step (*/5)
If day and weekday are both not *, many systems treat them as OR. Confirm on your platform. This tool outputs 5-field only (no seconds / year).
FAQ
Months with 28–30 days?
Day must exist in every selected month. Day
31 with Month * is rejected (Apr/Jun/Sep/Nov/Feb have no 31st). Pick only 31-day months, or use a day ≤ 28. The tool will not generate or copy an invalid expression.Day and Weekday both set?
Classic cron often uses OR. For weekdays only, keep Day as
* and set Weekday to 1-5.Which day is weekday 0?
0 = Sunday … 6 = Saturday. Some systems also accept 7 = Sunday.Next-run timezone?
Browser local time. Servers may use UTC—validate once in the target environment.
Seconds field?
Not generated here. Use your platform’s 6-field extension if you need it.
Is data uploaded?
No. See the Privacy Policy.