HTMLCron Expression Builder
Build cron expressions visually — set minute, hour, day, month, and weekday with intuitive inputs, see a human-readable description, and export a copyable schedule handoff pack for GitHub Actions, crontab, node-cron, and release review.
Ctrl+Enter to run | Ctrl+K to switch tools | Recent button shows input history
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What is a cron expression?
A cron expression is a 5-field string (minute hour day-of-month month day-of-week) used to schedule recurring tasks. For example, "0 9 * * 1-5" means "at 9:00 AM, Monday through Friday."
What is in the schedule handoff pack?
The pack includes a UTC-aware GitHub Actions starter, crontab command, node-cron snippet, release review checklist, schedule-shape warnings, and a small validation smoke scaffold.
Where can I use cron expressions?
Linux/Unix cron (crontab), GitHub Actions scheduled workflows, AWS EventBridge, GCP Cloud Scheduler, Kubernetes CronJobs, Laravel scheduler, Node.js node-cron, and many CI/CD systems.