Cron Expression Builder

Build cron schedules visually. Get the expression, a plain-English description, and the next 5 run times instantly.

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How To Use Cron Expression Builder

Complete your task perfectly in just three straightforward steps.

1

Pick a Preset or Build Manually

Start with a preset like 'Every weekday at 9 AM', or click each field box to open the visual editor.

2

Review the Description

Plain-English description and next 5 run times update as you configure each field.

3

Copy in Your Format

Copy the raw cron or export for GitHub Actions, AWS EventBridge, or Kubernetes.

FAQ

Everything you need to know about the Cron Expression Builder.

What is a cron expression?

A 5-field string: minute, hour, day of month, month, day of week. '*' means every valid value.

What does */5 mean?

Step syntax. */5 in the minute field means every 5 minutes — at 0, 5, 10...55.

Why are GitHub Actions crons in UTC?

GitHub Actions always runs in UTC. Subtract your timezone offset from the hour field.

DOM and DOW together?

When both are set, cron uses OR logic — runs if either condition matches.

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