A free app for Android, by Ivan Linev.
Digital Clock with Metronome is an application that will display the time in various styles and formats. You can choose from the most popular ones, such as digital, and even military time. It is very easy to use, even for beginners. All you have to do is to choose your preferred style and choose the font and color that you want. Then, you can start the timer or stopwatch and set the duration.
When the time is up, the application will notify you, and you can stop the timer or stopwatch. It is also possible to start the timer in the background, so you will not be interrupted by the application.
It is possible to set the color and font of the clock to whatever you want.