Ring On Time is an application that will play music or sound files -- such as MP3 and MIDI -- of your selection on the time you have set. You can set up to four alarms, and you can also set it to play files on each quarter of every hour. You can also make Ring On Time to pick out a file to play from a folder. Options are available where you can have a message box to pop-up on time, or have you Macintosh read out the time for you.