Cron Expression Parser

Decode cron schedules with next run times.

Cron expression

Minute0, 15, 30, 45

Hour9, 10, 11, 12, 13, 14, 15, 16, 17

Day of month1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 1…

Month1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12

Day of week1, 2, 3, 4, 5

Next runs

1.Tue, Oct 6, 01:30 PM

2.Tue, Oct 6, 01:45 PM

3.Tue, Oct 6, 02:00 PM

4.Tue, Oct 6, 02:15 PM

5.Tue, Oct 6, 02:30 PM

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About this calculator

A cron expression parser that explains a five-field crontab schedule (minute, hour, day of month, month, day of week) in plain words and lists the next run times, so you can check a job before deploying it.

Frequently asked questions

What do the five cron fields mean?

In order: minute (0–59), hour (0–23), day of month (1–31), month (1–12 or JAN–DEC) and day of week (0–6 or SUN–SAT, where 7 is also Sunday).

What do *, commas, dashes and slashes do?

* means every value, 1,15 is a list, 9-17 is a range and */5 is a step — for example */5 in the minute field runs every five minutes.

Which time zone are the next runs shown in?

Next run times use your browser’s local time; a server may run cron in UTC, so convert if they differ.