Cron Expression Builder

Build, test, and understand cron schedule expressions visually.

* * * * *
0-59
0-23
1-31
1-12
0-6 (Sun=0)
Runs every minute

Next 5 Execution Times

Common Presets

0 * * * *
Every hour
*/5 * * * *
Every 5 minutes
*/15 * * * *
Every 15 minutes
0 0 * * *
Daily at midnight
0 9 * * 1-5
Weekdays at 9 AM
0 0 * * 0
Weekly on Sunday
0 0 1 * *
Monthly on the 1st
0 0 1 1 *
Yearly on Jan 1st
30 4 * * *
Daily at 4:30 AM
0 */2 * * *
Every 2 hours
0 9,17 * * *
At 9 AM and 5 PM
*/30 * * * *
Every 30 minutes

API Usage

Parse cron expressions programmatically:

curl "https://ai.doxx.lat/api/cron?expr=0+9+*+*+1-5"

Free API. CORS enabled. No signup required.

Cron Expression Format

A cron expression consists of 5 fields: minute hour day-of-month month day-of-week. Special characters: * (any), , (list), - (range), / (step). For example, */15 9-17 * * 1-5 means "every 15 minutes during business hours on weekdays".