Use Time Traveler to get back at a friend who pulled a prank on you last April FoolТ‘s day. Time Traveler is a devious little prank that changes the Windows system clock to a random time. To make matters worse, Time Traveler runs invisible in the background performing this task every 30 seconds. Just think of the fun you can have with this free prank software.В Closing Time Traveler is simple, once you learn how. Just move your mouse cursor to thetop left corner of the screen and Time Traveler will close down. For experienced users you can use the command line options to modify how often Time Traveler changes the system clock. To close, simply move your mouse cursor to thetop left corner of the screen. A splash screen will be displayed indicating the program was closed.