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Cron Expression Explainer

Explain a standard five-field cron expression and preview its next five UTC runs.

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Result

Your result will appear here. The input stays in this browser tab.

How to use it

Paste a five-field cron expression to read its fields and preview the next five UTC runs.

Try this example

0 9 * * 1-5

What to check

Previews use UTC. Vendor-specific cron extensions and other timezones are not supported.

Review the result before using it in a published page, application, or agent configuration.

Quick answers

Frequently asked questions

Which cron syntax can the helper explain?

It accepts five numeric fields with wildcards, lists, ranges, and steps. Vendor-specific names and extensions are outside this helper.

How are the next cron runs calculated?

The preview shows five future instants in UTC using standard day-of-month and weekday matching. Your scheduler's timezone may differ.

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