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Libre Cron Expression Explainer

Translate any cron expression into plain English and see the next run times. Supports ranges, lists, steps, names, and @macros. Runs in your browser.

Runs in your browserNo sign-up, no pop-upsNon é necesario iniciar sesiónLibre para sempre

Cron expression

minute

hour

day of month

month

1-5

day of week

This schedule means

At 9:00 AM, Monday through Friday.

Next 5 runs (your local time)

Thu, May 28, 2026, 09:00 AMin 17 hr
Fri, May 29, 2026, 09:00 AMin 41 hr
Mon, Jun 1, 2026, 09:00 AMin 5 days
Tue, Jun 2, 2026, 09:00 AMin 6 days
Wed, Jun 3, 2026, 09:00 AMin 7 days

💡 Fields are: minute, hour, day-of-month, month, day-of-week. Supports ranges (1-5), lists (1,15), steps (*/15), names (MON, JAN), and macros (@daily). All parsing happens in your browser.

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Como funciona

Cron expressions like "0 9 * * 1-5" are compact but hard to read. This tool parses the five fields and tells you, in plain English, exactly when the job runs — plus the next few run times.

1
You type a cron expression
Standard 5-field cron (or 6-field with seconds), including ranges, lists, steps, month/day names, and @macros like @daily.
2
Each field is parsed
The minute, hour, day-of-month, month, and day-of-week fields are expanded into the exact set of values they match — in your browser.
3
It's explained in English
The schedule is turned into a readable sentence, with common patterns (weekdays, weekends, "every N minutes") recognised.
4
Next runs are computed
The tool simulates the schedule forward to show the next five run times in your local timezone — respecting cron's day-of-month / day-of-week OR rule.