Short description of Sleep Timer Pro 4.8.2: Sleep Timer Pro is an all-in-one System Utility to automate the use of your system. With Sleep Timer you may shutdown, reboot, or set an alarm all with a few clicks of the mouse. Set your time in intervals like 15, 30, 45, 60, 90 minutes. Version 3.x+ now includes Clock Syncronization to GMT/Navy Clock in minute intervals!