A free program for Android, by Chess.com.
Chess Clock is a free chess game timer app with a simple design and a user-friendly interface. You can easily use the app to keep track of the amount of time that you have to play in order to win a game.
The app allows you to choose from the most popular time controls, such as "40 moves in 2 hours + game in 60 minutes." A glance at the clock shows your current stage. You can set the amount of time for each stage and for the entire game. You can also set the duration for each stage, and the app will show you when the stage is up.
The sound can be changed to a more pleasant one at any time. The app has a built-in timer, and you can pause it manually if you need to do something else.
