定时任务转换器
将 cron 表达式转换为人类可读格式，反之亦然。使用我们的可视化界面构建、验证和理解 cron 计划任务。
Format: minute hour day month day-of-week
(0-59)Hour
(0-23)Day
(1-31)Month
(1-12)DoW
(0-6)
Cron Syntax Reference:
Mastering Cron Expressions
Cron is a time-based job scheduler in Unix-like operating systems. Use this tool to build, validate, and understand your automation schedules.
1. Paste or Describe
Input a raw 5-field cron string or describe your schedule in plain English.
2. Fine-Tune Fields
Adjust individual fields for minutes, hours, days, and months with real-time feedback.
3. Verify Schedule
Check the "Next Runs" preview to ensure your jobs fire exactly when you expect.
The 5-Field Standard
Most modern systems (like crontab, GitHub Actions, and AWS Lambda) use the standard 5-field format:
* Note: Some specific implementations support an optional 6th field for "seconds" or "years".
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Frequently Asked Questions
为什么要使用我们的 Cron 表达式生成器？
Two-Way Conversion
Convert cron to human-readable text and vice versa.
下一轮运行预览
通过精确的调度，查看您的 cron 作业下次运行时间。
Real-Time Validation
Instant feedback on syntax errors.
常用模板
快速访问常用的 cron 表达式。