Cron expression parser

Fields are minute, hour, day-of-month, month, day-of-week. Supports *, ranges (1-5), steps (*/15) and lists (1,15,30).

At 09:00 on Mon, Tue, Wed, Thu, Fri.

2026-09-23 09:00 2026-09-24 09:00 2026-09-25 09:00 2026-09-28 09:00 2026-09-29 09:00

What is Cron expression parser?

Cron expressions schedule recurring tasks using five cryptic fields (minute, hour, day, month, weekday) — easy to write wrong and hard to read back later without translating it in your head.

How to use it

Enter a cron expression to get a plain-English description and the next five times it will actually run.

Example

0 9 * * 1-5 -> "At 09:00 on Mon, Tue, Wed, Thu, Fri."