Common Examples
What is Cron Expression Parser?
Cron Expression Parser helps you understand and validate cron expressions used for scheduling tasks. Cron is a time-based job scheduler in Unix-like systems. This tool translates cryptic cron expressions into human-readable descriptions and shows the next execution times, making it easier to create and debug scheduled jobs.
How to Use Cron Expression Parser
- Enter cron expression - Type your cron expression (e.g., "0 0 * * *")
- View description - See a human-readable explanation of the schedule
- Check next runs - View the next execution dates and times
- Validate syntax - Ensure your expression is valid
Cron Expression Parser Features
- Human-readable description - Converts cron to plain English
- Next execution times - Shows upcoming scheduled runs
- Syntax validation - Detects invalid cron expressions
- Standard cron support - Works with Linux/Unix cron syntax
- Common presets - Quick templates for common schedules
- Real-time parsing - Updates as you type
Frequently Asked Questions
What is the cron format?
Standard cron expressions have 5 fields: minute (0-59), hour (0-23), day of month (1-31), month (1-12), and day of week (0-7, where both 0 and 7 represent Sunday). Each field can contain a number, range, list, or special characters like * (any) and / (step).
What are common cron expressions?
"0 0 * * *" runs daily at midnight. "*/5 * * * *" runs every 5 minutes. "0 9 * * 1" runs at 9 AM every Monday. "0 0 1 * *" runs on the first day of each month. The tool includes presets for these common patterns.
Does this support cron extensions like @daily?
This parser focuses on standard 5-field cron syntax. Some systems support special strings like @daily, @hourly, or @reboot, but these are non-standard extensions and may not be supported in all cron implementations.