THE HISTORY OF STANDARD TIME

Last night I just stumbled upon a very interesting documentary on TIME on the PBS channel. This morning I went to Wikipedia and found the following. I thought it might interest you!

Read what follows and then answer the question.
The history of standard time in the United States began November 18, 1883 when United States and Canadian railroads instituted standard time in time zones. Before then, time of day was a local matter, and most cities and towns used some form of local solar time, maintained by some well-known clock

(for example, on a church steeple or in a jeweler's window). 
        
The new standard time system was not immediately embraced by all. Use of standard time gradually increased because of its obvious practical advantages for communication and travel.
Daylight time became a local matter. It was re-established nationally early in World War II, and was continuously observed until the end of the war. Time zone boundaries have changed greatly since their original introduction and changes still occasionally occur.
The standardizing of TIME was adopted all around the world for a very practical reason. THESE DAYS… think about AIR TRAVEL. All around the world, air traffic controllers use the SAME TIME!!! A good thing when you think of our safety!!

QUESTION: What are some of the different tools we use

                to visualize time???

Some interesting TRIVIA!!!

SUZANNE