Cron Tester

Parse and describe cron expressions in plain English. Supports standard (5-field) and Quartz / Azure Functions (6-field with seconds).

Input

Dialect

minute · hour · day-of-month · month · day-of-week. POSIX/Vixie cron — what you'll find on Linux servers, GitHub Actions, etc.

Expression

Presets

Supports *, ? (Quartz only), n,m, n-m, */k, n-m/k, and named months/weekdays (JAN, MON…). Quartz extensions L, W, and # are not yet supported.

Output

Pick a dialect and enter a cron expression on the left.