It'll ask you if you want the stopwatch or the timer. The stopwatch is in beta right now, and I've yet to simplify it. I'm thinking about upgrading the display sometime. Type 'stopwatch' (w/o quotes) to use the stopwatch. All you have to do is use the Start and Stop buttons. Type 'timer' (without the quotes) to access the timer. Then, it'll ask how long you want the timer to be. It'll ask how many hours, then minutes. When your timer goes off, you'll be greeted with a song that you might be familiar with. Hint: Never..... That's all I'm allowed to say.