Cron Generator
CRON Expression Generator
Generate and parse CRON expressions for scheduled tasks and automation. Create precise scheduling patterns for your applications.
CRON Expression Generator
CRON Expression 計算結果
Next Scheduled Runs
Code Examples
About CRON Expressions
CRON Expression Format
Standard Format: * * * * * (minute hour day month weekday)
Extended Format: * * * * * * (second minute hour day month weekday)
With Year: * * * * * * (second minute hour day month weekday year)
Special Characters: * / , - ? L W #
Common Use Cases
System Maintenance: Daily backups, log rotation, cleanup tasks
Data Processing: Batch jobs, report generation, data synchronization
Application Tasks: Cache clearing, session cleanup, monitoring
Business Operations: Email campaigns, billing, notifications
CRON Field Reference
| Field | Values | Special Characters |
|---|---|---|
| Minutes | 0-59 | * / , - |
| Hours | 0-23 | * / , - |
| Day of Month | 1-31 | * / , - L W |
| Month | 1-12 or JAN-DEC | * / , - |
| Day of Week | 0-7 or SUN-SAT | * / , - L # |
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