Cron Expression Builder

Build cron schedules with a visual editor or paste an existing expression to decode it. See a plain-English description and the next scheduled run times.

Quick presets

0=Sun, 1=Mon, 2=Tue, 3=Wed, 4=Thu, 5=Fri, 6=Sat

0 9 * * 1-5

At 09:00 AM, Monday through Friday

Next 5 runs

1Thu, Jun 25, 2026, 09:00 AM
2Fri, Jun 26, 2026, 09:00 AM
3Mon, Jun 29, 2026, 09:00 AM
4Tue, Jun 30, 2026, 09:00 AM
5Wed, Jul 1, 2026, 09:00 AM
Cron syntax reference
SymbolMeaning
*Any value
5Exact value (e.g., minute 5)
1-5Range (e.g., Monday through Friday)
*/15Every 15th (e.g., every 15 minutes)
1,15List (e.g., 1st and 15th)
1-5/2Range with step (1, 3, 5)

How it works

Cron expressions define recurring schedules using five fields: minute, hour, day of month, month, and day of week. This tool lets you build expressions visually or decode existing ones into plain English, and shows you exactly when the next runs will happen so you can verify your schedule is correct.