A free program for Android, by T-M.

World Clock & Widget is a handy utility that provides you with an easy way to keep track of time in different locations. If you are someone who is always on the go and has to stay up-to-date with the time in different places, this app is for you. With this app, you can check the current time in different cities, and if your current location is missing, you can easily add a new one.

You will be able to find a list of all cities in the world that are in the same time zone as your current location. You can also change the title of your clock and the description.