It is a online tool which help to generate a Cron expression easily.
- The first number is the minutes after the hour (0-59)
- The second is the hour of the day (0-23, with 0 being 12 AM EST)
- The third number is the day of the month (1-31)
- The fourth is the month of the year (1-12)
- The fifth is the day of the week (0-6, with 0 = Sunday and 6 = Saturday, etc.)