Cron Calculator

What it does

The modern, AI-powered cron expression editor and explainer. Easily create, validate, and understand cron schedules online with human-readable explanations.

Free cron expression generator and explainer. Build or paste a crontab schedule, read it in plain English, preview the next run times in any timezone, and export it for GitHub Actions, Kubernetes, AWS, or Vercel.

Generate, explain, and validate cron expressions, with the next run times in any timezone. A cron expression has five space-separated fields: minute hour day month weekday . Each field controls when the job runs. For example, 0 0 * * * runs at midnight daily, 0 0 * * 1 runs at midnight every Monday, and 0 0 * * 1-5 runs at midnight on weekdays. Cron is a time-based job scheduler found in Unix-like operating systems. A cron expression defines when a task should run using a compact five-field format. You'll find cron expressions in Linux servers, AWS CloudWatch, GitHub Actions, Kubernetes CronJobs, and most CI/CD platforms. They're powerful but notoriously hard to read—that's why we built…from croncalculator.com

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