StopWatch is an application that functions like a real stopwatch. You press START to start the clock running. You then press STOP to stop the clock, and you can see the time that has passed. You can then press RESET to reset the time on the clock so you can start again.
You have to install the MIDP Java Profile on your Palm before running this application. It can be downloaded from sun for free at http://java.sun.com/products/midp4palm/