How to explain a cron expression in plain English

1. Paste the cron expression

   "Cron expression" expects the classic five-field Unix syntax: `minute hour day-of-month month day-of-week`. Example: `0 9 * * 1` means 09:00 every Monday.

2. What's supported

   Standard wildcards (`*`), lists (`1,15`), ranges (`9-17`), steps (`*/15`, `0-30/5`), and weekday/month names where the local cron implementation accepts them. Up to 120 characters total.

3. Press Run

   Result returns a human-readable explanation derived from each field — e.g. "At 09:00, on Mondays." The tool does NOT compute next runtimes; for that pair with cron-next-runs-online.

4. Six-field & dialect caveats

   Quartz / non-standard dialects with a seconds or year field, predefined macros (`@hourly`, `@yearly`), or `L`/`W`/`#` extensions are not all handled — the explainer is built around POSIX-ish 5-field cron.