Cron Expression Explainer

Schedule
Every 15 minutes past hours 9 through 17, Monday through Friday
Minute
Every 15 minutes
Hour
Hours 9 through 17
Day of month
Every day of the month
Month
Every month
Day of week
Monday through Friday
Parsed locally in your browser, field by field. Nothing is scheduled, executed, or sent anywhere — your cron expression stays only on this page.

Read a cron expression in plain English

Paste a standard 5-field cron expression — minute, hour, day-of-month, month, day-of-week — to see when it runs and validate each field. Lists (1,15,30), ranges (1-5), steps (*/15), and named months and weekdays (JANDEC, SUNSAT) are all supported. This is the read-and-check counterpart to the cron expression generator; it explains and validates but never computes next run times or applies time zones.