I call it REAL TIME, but that is a Janice VanCleave term.
A time zone refers to a region of the Earth that has adopted the same standard time, usually called local time. Time zones were established in the in the U.S. and Canada by the railroads in 1883. But it wasn’t until March 19, 1918 that time zones were official established as a law in the U.S., sometimes called the Standard Time Act.This act also established daylight saving time. Daylight saving time was repealed in 1919, but standard time in time zones remained in law. For more information about Daylight Saving Time, see Daylight Saving Time.
If you want to know what time it is in Japan, Puerto Rico or any other place in the world, use the time calculator HERE.
Other Free Information can be found on the following links.
Book Research Sources for Time, Including Time Zones:
FYI: Geography is a branch of science that encompasses all aspects of the Earth’s physical features and inhabitants. It is the study of almost about the Earth–the distribution of its people, animals, and plants; land , sea, and air features; weather conditions–the list can seem endless.