Validate a five-field cron expression, explain each field, and preview the next scheduled occurrences in your browser's time zone.
This tool supports standard five-field crontab syntax: wildcards, lists, ranges, steps, and month/day names. It does not execute or register jobs.
Use the preview to catch range, step, and weekday mistakes. When both day-of-month and day-of-week are restricted, the preview follows common crontab OR semantics.