Time moves a bit faster on the moon than on Earth because the moon's mass is smaller than that of Earth and its gravity is weaker. That means the moon is going to get its own time zone.

Alternatively, select a time zone by name. Press the "Home" button to return to the Android's home screen. The time that corresponds with the new time zone appears on the display.

While it seems like Nixie tubes get all the attention when it comes to making retro-style displays, there are plenty of other display technologies that can make a good-looking retro design. Take th… ...