Daily Schedule:
Click on this field to display the Schedule builder form.
Enter a list of the times you want to backup your data each day of the week. 

Enter times using the 24 hour clock eg.:
09:00
13:00
17:00
Will back up at the start of the day, at lunch time and at the end of the day.
You can add as many times as you need.
You don't need to specify any times at all if you use periodic shadowing (see next help screen).