At present I have not wrapped this in an installation file. Just download it to your desktop for example.
The alarm clock is a small utility that you can set up to three different times for the alarm to be activated. Also one can have the alarm go off hourly (not necessarily just on the hour).
The alarm will normally be present in the system tray (small area next to the clock at the bottom right of your screen). Clicking on the icon there will bring the options dialog to the screen.
It comes with a default tune and you can select other wav files to play if you so wish.