Developer Tools

Cron Next
Run Times

Q: How does cron handle day-of-month and day-of-week together?

When both the day-of-month and day-of-week fields are restricted (not *), cron runs the job if either matches. If only one is set, that one applies. This tool follows the same rule.

Q: Which cron syntax is supported?

Standard 5-field cron: lists (1,15), ranges (1-5), steps (*/10, 0-30/5) and the wildcard *. Day-of-week accepts 0 or 7 for Sunday.

Paste a cron expression and instantly see the next times it will fire, plus a plain-English read-out. Catch a mistimed job before it ships to production.

Next 5 runs

Human readable

Ranges & steps

# expression
0 9 * * 1-5

# next runs
Mon 09:00
Tue 09:00

Frequently Asked Questions

How are the next run times calculated?

The tool parses your five cron fields into the set of allowed minutes, hours, days, months and weekdays, then steps forward minute by minute from now and lists the first five matches — in your browser's local timezone.

How does cron handle day-of-month and day-of-week together?

When both the day-of-month and day-of-week fields are restricted (not *), cron runs the job if either matches. If only one is set, that one applies. This tool follows the same rule.

Which cron syntax is supported?

Standard 5-field cron: lists (1,15), ranges (1-5), steps (*/10, 0-30/5) and the wildcard *. Day-of-week accepts 0 or 7 for Sunday.

Does the time match my server?

Results use your local timezone. Your server runs cron in its own timezone (often UTC). Check the server with timedatectl and adjust if they differ.