Cron Expression Builder

Stop guessing cron syntax. Build your schedule visually — pick the minutes, hours, days, and months with toggle buttons — and instantly get the cron expression, a plain-English description, and the exact next 5 execution times. Supports GitHub Actions, AWS CloudWatch, and Kubernetes format exports.

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Cómo usar Cron Expression Builder

Completa tu tarea perfectamente en solo tres sencillos pasos.

Pick a Preset or Build Manually

Start with a common schedule preset, or click any of the 5 field editors to configure minute, hour, day, month, and weekday individually.

Review the Description

The plain-English description updates in real time so you always know exactly what schedule you're building.

Copy in Your Format

Copy the raw cron expression or export it pre-formatted for GitHub Actions, AWS CloudWatch, or Kubernetes CronJob.

Preguntas frecuentes

Todo lo que necesitas saber sobre el Cron Expression Builder.

What is a cron expression?

A cron expression is a 5-field string that defines a recurring schedule for automated tasks. Each field represents: minute (0–59), hour (0–23), day of month (1–31), month (1–12), and day of week (0–6). The '*' wildcard means 'every valid value'.

What does */5 mean?

The slash (/) means 'step'. */5 in the minute field means 'every 5th minute' — i.e., at minutes 0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55.

Why are GitHub Actions crons in UTC?

GitHub Actions runs on UTC time. The schedule trigger uses a standard 5-field cron in UTC, so if your local timezone is IST (+5:30), you need to subtract 5:30 from your local time when writing the cron.

Can I use both DOM and DOW?

When both the day-of-month (DOM) and day-of-week (DOW) fields are set (not *), cron uses OR logic — meaning the job runs if EITHER condition matches.