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Learn How Cron Expressions Work

Each tweak shows immediate plain-English explanation and a preview of the next 5 runs — best way to learn cron.

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minute
(0-59)hour
(0-23)day
(1-31)month
(1-12)weekday
(0-6)

In plain English

At 09:00 on Mon, Tue, Wed, Thu, Fri.

Next 5 scheduled runs (your local time)
  • Thu, May 2809:00
  • Fri, May 2909:00
  • Mon, Jun 109:00
  • Tue, Jun 209:00
  • Wed, Jun 309:00

Common patterns

Compatible with standard Unix cron, GitHub Actions, Kubernetes CronJob, and most scheduling systems. Use * for “every”, */5 for “every 5”, 1-5 for ranges, 1,15 for specific values.

Learning tips

🎓

Click through the preset patterns to see how each field maps to time. Start simple, work up to compound expressions.

💡

The "next 5 runs" preview is the best learning tool — instant feedback when your expression doesn't mean what you thought.

🎯

Cron syntax: minute (0-59), hour (0-23), day-of-month (1-31), month (1-12), day-of-week (0-6, 0=Sunday).

Cara kerja

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