Cron Expression Builder

Build, validate, and explain cron expressions in plain English. Preview the next 5 run times. 10 common presets included.

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Cron expression
Next runs
Common presets

Common use cases

Frequently asked questions

What format does this expect?

Standard 5-field cron: minute hour day-of-month month day-of-week. Step values (*/5), ranges (1-5), lists (1,3,5), and shorthands (@daily, @hourly) are all supported.

Are next-run times in my timezone?

They're shown in UTC. Most cron systems (Linux, GitHub Actions, Vercel) run in UTC by default. Adjust mentally if your server uses a different timezone.

What's the difference between "0 0 * * *" and "@daily"?

They're equivalent — both run at midnight UTC. Shorthands are easier to read; literal expressions are more portable across systems that don't support shorthands.

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