Developer Tools
Cron Expression Explainer
Parse and explain cron expressions in human-readable format
Cron Expression Explainer
Cron Format
Cron Expression
Format: minute hour day-of-month month day-of-week
Cron Fields Reference
Minute
0-59Minute of the hourHour
0-23Hour of the day (24-hour format)Day of Month
1-31Day of the monthMonth
1-12Month of the yearDay of Week
0-7Day of the week (0 and 7 = Sunday)Common Cron Examples
0 0 * * *
Daily at midnight
0 9 * * 1-5
Weekdays at 9 AM
*/15 * * * *
Every 15 minutes
0 0 1 * *
First day of every month
0 12 * * 0
Sundays at noon
30 2 * * *
Daily at 2:30 AM
0 */2 * * *
Every 2 hours
0 0 * * 6
Every Saturday at midnight
How to Use Cron Expression Explainer
1.
Enter Expression
Type or paste a cron expression in the standard 5-field format
2.
Get Explanation
Get instant human-readable explanation and field breakdown
3.
Use Examples
Click on common examples to learn different cron patterns
Cron Explainer Features
Real-time Validation
Instant validation and explanation as you type
Detailed Breakdown
Field-by-field breakdown with human-readable descriptions
Common Examples
Pre-built examples for common scheduling scenarios
Frequently Asked Questions
Q: What is a cron expression?
A: A cron expression is a time-based job scheduler format used in Unix-like systems. It consists of 5 fields: minute, hour, day of month, month, and day of week.
Q: What does */15 mean?
A: The */15 syntax means 'every 15 units'. So */15 in the minute field means 'every 15 minutes', while */2 in the hour field means 'every 2 hours'.
Q: Can I use both day of month and day of week?
A: Yes, but they work with OR logic. If both are specified (not *), the job runs when EITHER condition is met, not both.
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Cron Expression Explainer
Parse and explain cron expressions in human-readable format
Cron Expression Explainer
Cron Format
Cron Expression
Format: minute hour day-of-month month day-of-week
Cron Fields Reference
Minute
0-59Minute of the hourHour
0-23Hour of the day (24-hour format)Day of Month
1-31Day of the monthMonth
1-12Month of the yearDay of Week
0-7Day of the week (0 and 7 = Sunday)Common Cron Examples
0 0 * * *
Daily at midnight
0 9 * * 1-5
Weekdays at 9 AM
*/15 * * * *
Every 15 minutes
0 0 1 * *
First day of every month
0 12 * * 0
Sundays at noon
30 2 * * *
Daily at 2:30 AM
0 */2 * * *
Every 2 hours
0 0 * * 6
Every Saturday at midnight
How to Use Cron Expression Explainer
1.
Enter Expression
Type or paste a cron expression in the standard 5-field format
2.
Get Explanation
Get instant human-readable explanation and field breakdown
3.
Use Examples
Click on common examples to learn different cron patterns
Cron Explainer Features
Real-time Validation
Instant validation and explanation as you type
Detailed Breakdown
Field-by-field breakdown with human-readable descriptions
Common Examples
Pre-built examples for common scheduling scenarios
Frequently Asked Questions
Q: What is a cron expression?
A: A cron expression is a time-based job scheduler format used in Unix-like systems. It consists of 5 fields: minute, hour, day of month, month, and day of week.
Q: What does */15 mean?
A: The */15 syntax means 'every 15 units'. So */15 in the minute field means 'every 15 minutes', while */2 in the hour field means 'every 2 hours'.
Q: Can I use both day of month and day of week?
A: Yes, but they work with OR logic. If both are specified (not *), the job runs when EITHER condition is met, not both.