Cron parser & builder

Paste a cron expression or fill in the fields individually, and see a plain-English explanation plus the next five execution times in your local timezone. Standard 5-field Unix cron with *, lists (1,5,10), ranges (1-5) and steps (*/5, 1-30/2). Month and day name aliases (MON, JAN) are accepted. Runs entirely in your browser.

Per field

Meaning

Next five execution times (in your timezone)

    Quick reference
    SymbolMeaning
    *Any valid value
    5Exact value
    1,3,5List of values
    1-5Range (inclusive)
    */15Every 15 steps (from 0)
    1-30/2Range with step
    MON, JANName aliases for days / months

    When both day-of-month and day-of-week are specified: cron matches when either matches (standard Vixie cron behaviour).