Cron Expression Parser & Generator

What is a Cron Expression?

A cron expression is a string of five (or six) fields separated by spaces that represents a schedule. Cron is used in Unix-like systems to schedule commands or scripts to run at specific times. The five fields represent: minute, hour, day of month, month, and day of week.

Cron Syntax Reference

Each field accepts numbers, ranges (1-5), lists (1,3,5), steps (*/5), and wildcards (*). For example, */15 9-17 * * 1-5 means "every 15 minutes between 9am and 5pm on weekdays."

How to Use This Tool

Enter a cron expression in the input field and click "Parse" to see a human-readable description and the next scheduled run times. Use the preset buttons to quickly load common schedules.