Cron Expression Parser
11 toolsTranslate a cron expression into plain English.
Runs in your browser — your files and text stay on your device
Translate a cron expression into plain English and see when it will run. A standard expression has five fields: minute, hour, day of month, month and day of week. Cron usually runs in the server's time zone, often UTC, so check that before you deploy a schedule.
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Fields: minute hour day-of-month month day-of-week
At every 15 minutes, between 09:00 AM and 05:00 PM, Monday through Friday.
How to use this tool
- 1Type a standard 5-field cron expression.
- 2The plain-English description updates live.
- 3An error explains what's wrong if invalid.
Frequently asked questions
What cron syntax is supported?
The standard 5-field format (minute, hour, day-of-month, month, day-of-week), including *, */N steps, ranges, and comma-separated lists.
Does it support 6-field cron with seconds?
No, only the standard 5-field format. Trim a seconds field if your scheduler includes one.
Is my expression sent to a server?
No, parsing happens entirely in your browser.