How to build a cron schedule — readable expressions

Create and validate cron expressions for Linux, GitHub Actions and Kubernetes CronJobs.

Cron schedules use five or six fields (minute, hour, day-of-month, month, day-of-week) to trigger jobs repeatedly. A readable builder prevents off-by-one errors that run jobs at wrong times.

Tentaco Cron Builder explains each field and shows the next run times — ideal before pasting into crontab or CI YAML.

Steps

Open Cron Builder in Automation Studio or /use/cron-builder.
Choose presets (hourly, daily, weekly) or edit fields manually.
Read the human-readable explanation below the expression.
Copy the cron string into crontab, GitHub Actions schedule, or K8s CronJob spec.
Test in a staging environment before production-critical schedules.

Open in studio

Automation Studio

Related guides

Cron Builder — cron expression generator