Free Alarm Clock Portable - Version 3.0 If you need portable alarm clock software for Windows, this is the software you are looking for. Free Alarm Clock Portable supports unlimited number of alarms so that you are not restricted to the number of alarms you can have.Alarms that you set will sound even if computer goes to sleep. While your PC is sleeping and the time comes to activate your alarm, Free Alarm Clock Portable will wake your PC up.The alarm clock can remind you about important events by playing your favorite music and showing a notification message. You can set alarm volume level to a comfortable level depending on the time of the day.