Cron Expression Parser
Validate standard 5-field cron expressions, explain the schedule, and preview the next 10 local run times. Supports ranges, lists, steps, names, and common macros.
Runs locally in your browser. Standard 5-field cron only: minute hour day month weekday.
Examples: */15 * * * *, 0 9 * * MON-FRI, @daily
Summary
| Next local run | UTC ISO |
|---|
Supported cron syntax
This parser supports standard 5-field cron, lists like 1,15, ranges like MON-FRI, steps like */15, month and weekday names, and macros such as @daily. It does not support a seconds field.
FAQ
Which timezone are next runs shown in? They are shown in your browser's local timezone, with UTC ISO beside each run.
Does day-of-month combine with weekday using OR? Yes. When both fields are restricted, matching either one can trigger a run, matching common cron behavior.