Cron Visualizer
Paste a cron expression to see it in plain English, the next runs, and warnings for the classic mistakes.
0–59
0–23
1–31
1–12
0–6
Five fields — minute, hour, day-of-month, month, day-of-week — that define a schedule.
A cron expression is five space-separated fields — minute, hour, day-of-month, month, day-of-week — each a number, a range (1-5), a list (1,15), a step (*/6), or * for "any". A job runs when the current time matches every field.
The most common trap: */6 in the hour field means "every 6 hours", but 6 means "at 6 o'clock". And when both day-of-month and day-of-week are set, standard cron runs the job when either matches — not both. This tool flags those, explains the schedule in plain English, and shows you the actual next run times so you can sanity-check before it ships. Everything is parsed in your browser.