ONNONOONOOO

Cron expression generator and parser

Build or parse five-field Cron and preview the next five runs.

6

Enter known values

Fill in the fields below — the result will appear alongside.

Live developer-tool preview
* * * * *
*Minute*Hour*Day of month*Month*Day of week

Custom five-field schedule: * * * * *.

Parse expression

Formulas

mhdmMdwm\quad h\quad d_m\quad M\quad d_wtn+1=min{t>tn:C(t)}t_{n+1}=min\{t>t_n:C(t)\}

How it works

Use an existing expression or construct minute, hour, day, month and weekday fields. Validate ranges, lists, steps and names, then preview upcoming runs for a chosen UTC offset.

Each field is expanded into allowed values. The scheduler scans future minutes using standard Cron day-of-month/day-of-week semantics and returns the next five matches.

Examples

Weekdays at 09:30{"cronExpression":"30 9 * * MON-FRI","cronMode":"parse","timezoneOffsetMinutes":0}

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