A stopwatch is highly useful in many different fields. It is popularly used in sports matches like Olympic Games where it's called a time stopwatch on huge panel. In the kitchen it's frequently used for cooking recipes, especially for boiling soups. For beginners and other curious individuals, wanting to learn how to make a stopwatch can be quite confusing.
The answer to your question is that you can use a stopwatch application for Windows 10 on your PC. The best way to learn how to make a stopwatch with this new app is to download a free demo version. As you can see in the screen capture above, there are two main views available on the application. One of them (start) displays a graphical representation of the seconds that you have gone since you started the timer whilst the second view (select save) is more similar to how you would use a traditional stopwatch for timed recording of your activities.
There are many demos of Android apps that are based on the official Android SDK. If you want to try the stopwatch for Windows 10, you can simply go to the Windows Store and search for "Stopwatch for Windows" or" emulator testing tools for Windows". Once you have found the correct app, just go ahead and download it. The demo version should let you see the features very clearly so you will be able to understand how to use the app in the real world without any problem.