A free program for Android, by Prime Dev Studio.

Digital Clock Widget is a free app for Android devices that can be used as a clock widget. You can use it to show the current time and date on your home screen. The app has a beautiful user interface, and you can change the look of the clock by choosing from the different themes that are available. You can also set the time and date yourself if you want. 

It works perfectly without an active internet connection, and the themes are all free. You don’t have to tap your screen more than once to see the current time and date. You can set the clock as per your wish.