This is the main window of Alarm Clock Pro where you can see the toolbar which contains buttons like New, Edit, Calendar, Chronoindex, Stopwatch, Timezones and Timer 

The Edit Alarm window lets you configure a personal alarm by entering a name and a specific time. Here you can also see the Events tab where you may configure the actions performed when the alarm rings 

Here is the Add Time Index window where you can enter a time index name as well as 2 dates and a label 

Alarm Clock Pro also provides a Stopwatch which you can start and stop in order to monitor a specific activity 

The Clock menu lets you select what kind of clock should be displayed when the alarm is being activated. You may choose from: Digital Clock, Gradient, Grandfather, Pirate Map, Raindow and Red clocks 

Here is the Preferences window where you can set General preferences as well as preferences regarding Ringing, Clock resizing, Task Randomizer or Startup options 

The Smart Snooze window allows you to activate a countdown for a chosen alarm after stopping the playback for all the other alarms