Crontab Guru

Cron is the original scheduled-task system on Unix. A cron expression is five space-separated fields — minute, hour, day-of-month, month, day-of-week — each containing either a number, a list, a range, a step, or the wildcard *. The deceptively-simple grammar is powerful enough to express "every weekday at 9:30 AM" or "twice an hour between 2pm and 6pm on the 15th of every month" but it is also famously hard to read at a glance.

This generator helps you build cron expressions from a friendly UI and explains an existing expression in plain English. It also shows the next ten times the schedule will fire, computed in your local timezone, so you can sanity-check before deploying.

1. Pick a preset (every minute, every hour, daily, weekly, etc.) or type a cron expression directly.
2. The plain-English description and the next ten run times update live.
3. Copy the resulting cron expression into your scheduler — Linux crontab, Kubernetes CronJob, GitHub Actions, etc.
4. Use the timezone toggle to preview the schedule in UTC if your scheduler runs in UTC.

• Scheduling nightly database backups.
• Configuring GitHub Actions workflows that run on a recurring cadence.
• Setting up Kubernetes CronJobs for periodic cleanup tasks.
• Building Airflow DAG schedules.