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Mr. E’s LaHistory
Oct. 5, 2010
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Oct. 5, 1862 ~ Calcasieu planters warned of arrival of Union troops in Lake Charles.
1. What time zone do we live in?
2. How many time zones of the continental United Staes have?
Write in ONLY Black ink or PENCIL
1. Use time zones in the United States or the International Date Line to interpret a map or representation of a globe and calculate current times in different places (G-1A-M2)
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Sun-time Until the 1860s most places in the world lived and worked on their own “Sun Time” which meant that everyone used sunrise and sunset as the time of day.
Fact #1
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Fact #2
Railroads changed the way
people thought about “time”.
From 1883 railroads
synchronized watches and
created a “standard time”.
1. Use time zones in the United States or the International Date Line to interpret a map or representation of a globe and calculate current times in different places (G-1A-M2)
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Fact #3
World Time The world was divided into 24 time zones from east to west with the U.S. covering seven of those.
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U.S. Time zones
Fact #4
Atlantic, Eastern, Central, Mountain, Pacific, Alaskan, and Hawaii-Aleutian. Our local TV is CST.
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Fact #5
Losing timeIf you travel from Lake
Charles to DisneyWorld you will arrived one
hour later than you left.
1. Use time zones in the United States or the International Date Line to interpret a map or representation of a globe and calculate current times in different places (G-1A-M2)
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Fact #6
Gaining timeIf you travel from Lake Charles to Disneyland in California you will arrived two hours before you left.
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Fact #7
London When time is it somewhere else? If it is 7AM in Lake Charles, what time is it in London? How do I find out? Memorized some chart? Call and wake them up? Google it?
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Fact #8
When is “today” not “today”?
An imaginary line on the Earth's surface, 180° from Greenwich. As the Earth rotates, each day first begins and ends on the line. A traveler going east over the line sets their calendar back one day, and going west adds on day.
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When is it right now? Lets look at some places and tell when it is right now.
• Beijing China
Fact #9
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Bet you didn’t know
AM = Ante Meridiem, in 12-hour clock notation, Latin for "before noon"
PM = Post Meridiem (p.m., "after noon")
Fact #10
http://www.time.gov/timezone.cgi?Central/d/-6/java
1. Use time zones in the United States or the International Date Line to interpret a map or representation of a globe and calculate current times in different places (G-1A-M2)
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Fact #11
Universal TimeThe world is divided up into about 24 time
zones. Standard time within most time zones is an integral number of hours offset from a time scale called Coordinated Universal Time (abbreviated UTC), maintained by a large number of very precise “atomic clocks” at laboratories around the world, including the U.S. Naval Observatory.
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homework
HomeworkShort worksheetMap Due in the morning!