Brief Summary: Company > General> Notification Window Start or Notification Window End
Step one: You will click on Company at the top of your dashboard.
Step two: You will click General.
Step three: Look to the right side of the screen and you will see notifications, select the time before and after you want. Please note, if you want it to be before the time, it needs to be a negative number.
Ex: Scheduled time is 1:30 but you want a window of 1-2, you will need to put -30 in the start box, and 30 in the end box.