Cron Expression Parser

Parse, explain, and visualize cron expressions to understand when scheduled tasks will run.

Enter Cron Expression (5 fields: minute hour day-of-month month day-of-week)

Explanation

Next Run Times

Showruns

No upcoming runs found.

Common Cron Patterns

Cron Syntax Reference

Field	Position	Values	Special Characters
Minute	1	0-59	**/n0-591,2,3
Hour	2	0-23	**/n0-231,2,3
Day of Month	3	1-31	**/n1-311,15,30
Month	4	1-12	**/n1-12JAN,FEB,MAR
Day of Week	5	0-6	**/n0-6SUN,MON,TUE

Special Characters

* - Any value/all values
Example: * * * * * = Run every minute
, - Value list separator
Example: 0,15,30,45 * * * * = Run every 15 minutes
- - Range of values
Example: 0 9-17 * * * = Run on the hour, 9 AM to 5 PM

/ - Step values
Example: */15 * * * * = Run every 15 minutes
0-6 - Day of Week (Sunday = 0)
Example: 0 0 * * 1-5 = Run at midnight, Monday through Friday
JAN-DEC - Month names
Example: 0 0 1 JAN,APR,JUL,OCT * = Run quarterly

How to Use

Enter your cron expression in the input field above.
The tool will automatically validate and parse your expression.
If valid, you'll see a human-readable explanation of the schedule.
The next run times section shows when your jobs would execute.
Use the common patterns section for quick access to frequently used schedules.
Refer to the syntax reference if you need help building your expression.

About Cron Expression Parser

What This Tool Does

Parses and validates cron expressions in standard format
Provides plain English explanations of what the schedule means
Shows the next scheduled execution times
Offers quick access to common cron patterns
Helps debug and understand existing cron schedules

Common Use Cases

Setting up server maintenance schedules
Configuring backup jobs
Planning recurring tasks in CI/CD pipelines
Setting up database cleanup operations
Scheduling report generation
Learning cron syntax for job scheduling
Validating existing crontab entries

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