Password Recovery Time Simulator isn`t a password recovery program itself, but is related to the brute force method, which is used for recovering lost passwords.
As you know, the brute force method is the one which uses all possible combinations until it gets to the correct one. Of course, the longer the password, the more time it takes to find it (this can be from seconds to hours). And for this Password Recovery Time Simulator has been created.
Password Recovery Time Simulator calculates the time it takes to guess a password, depending on the Mhz of your PC processor. That way you can estimate the time in minutes or hours.