answersLogoWhite

0

Answer:

The 12-hour clock was developed over time from the mid-second millennium BC to the 16th century AD and was once popular throughout Northern Europe, but is now used as the dominant system in many former British colonies, including the United States and Canada. It is also used informally in most of the world.

Source[s]:

http://en.wikipedia.org/wiki/12-hour_clock

User Avatar

Wiki User

16y ago

What else can I help you with?