About Cron Parser
Cron expressions define schedules for recurring tasks in Unix/Linux systems, CI/CD pipelines, and job schedulers. This parser takes a cron expression (e.g., */5 * * * *) and shows a human-readable description, plus the next 10 scheduled run times. Useful for verifying that your cron schedule does what you expect before deploying it to production.
How to Use
- Enter a cron expression (e.g., 0 9 * * 1-5).
- Click "Parse" to analyze the expression.
- Read the human-readable description.
- Review the next 10 scheduled run times.
Key Features
- ✓ Parse standard 5-field cron expressions
- ✓ Human-readable schedule description
- ✓ Preview next 10 run times
- ✓ Validate expression syntax
Common Use Cases
- • Verifying cron schedules before deployment
- • Understanding existing cron configurations
- • Planning scheduled job timing
- • Debugging cron expression syntax
Frequently Asked Questions
What is a cron expression?
A cron expression is a string of five fields (minute, hour, day-of-month, month, day-of-week) that defines a recurring schedule. For example, "0 9 * * 1-5" means "at 9:00 AM, Monday through Friday".
What does */5 mean?
The */N syntax means "every N units". So */5 in the minute field means "every 5 minutes", and */2 in the hour field means "every 2 hours".
What is the difference between * and ?
In standard 5-field cron, * means "every value". The ? character is used in some 6/7-field cron implementations (like Quartz) to indicate "no specific value" for day-of-month or day-of-week.
Can I use this for Kubernetes CronJobs?
Yes. Kubernetes CronJobs use standard 5-field cron syntax, so this parser works perfectly for validating your schedules.