What are the 5 fields in a cron expression?

Left to right: minute (0-59), hour (0-23), day of month (1-31), month (1-12), day of week (0-6, Sunday=0). For example, "30 2 * * 1-5" means 2:30 AM every weekday.

What does */ mean in cron?

*/N means "every N units". For example, */5 in the minute field means every 5 minutes, */2 in the hour field means every 2 hours.

Can a cron expression have 6 fields?

Yes. Some systems (like AWS EventBridge, Quartz Scheduler) add a seconds field as the first field, making 6 fields total. This tool supports the standard 5-field Unix cron format.

Cron Expression Builder

Pattern Tools

Build and explain cron expressions — see next run times in plain English

100% client-side processing

Cron Expression

Format: minute hour day-of-month month day-of-week

Cron Expression

* * * * *

Plain English

every minute, of every hour

Next 5 Run Times

4/6/2026, 2:07:00 PM

4/6/2026, 2:08:00 PM

4/6/2026, 2:09:00 PM

4/6/2026, 2:10:00 PM

4/6/2026, 2:11:00 PM

Common Presets

How to Use Cron Expression Builder Online

Paste your data into the input field above
The result appears instantly in the output area
Click "Copy" to copy the result to your clipboard

Build and explain cron expressions — see next run times in plain English. Runs 100% client-side — no data is sent to any server.

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