Configurable digital clock for day or night activity with large numbers for good vision. In the setup it is possible to choose a custom color for the clock and background and select one of the fonts for numbers. To change clock color swipe left or right. Double touch to change background from black to white. You can change clock brightness from 1 to 100 % to save energy. Note: The application itself needs only a minimum of energy, but if your phone is always on, then it itself needs enou