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Cron式生成

Cronスケジュール式をビジュアルに生成。

Features

  • Visual cron expression builder with intuitive interface
  • Real-time preview of next 5 execution times
  • Comprehensive explanation of each cron field
  • Pre-built templates for common scheduling needs
  • Export and copy functionality for easy implementation

How to Use

  1. Select the desired frequency using the visual interface dropdowns
  2. Adjust individual fields (minute, hour, day, month, weekday) as needed
  3. View the generated expression and preview next execution times
  4. Copy the expression or use one of the export options for your system

Frequently Asked Questions

What is a cron expression?

A cron expression is a string that describes a schedule using five fields: minute, hour, day, month, and weekday. It's used to automate tasks in Unix-like operating systems.

How do I schedule a task to run every day at 3 AM?

Set the minute field to '0', hour to '3', day to '*', month to '*', and weekday to '*'. This creates the expression '0 3 * * *' for daily execution at 3 AM.

What does the asterisk (*) mean in cron expressions?

The asterisk is a wildcard that represents 'every' possible value for that field. For example, in the hour field, * means every hour of the day.

Can I schedule a task to run on weekdays only?

Yes, set the weekday field to 1-5 (Monday-Friday) and leave other fields as needed. For example '0 9 * * 1-5' runs at 9 AM on weekdays.

How do I test if my cron expression works correctly?

Use our preview feature to see the next 5 execution times based on your expression, or test it in your actual system with a simple notification task.