Friday, July 13, 2012

Us Timezones

Some cool Central Timezone images:


US Timezones
Central Timezone

Image by r.rosenberger
I traveled a lot between parents when I was younger, so it feels like I've always known the US timezones, they're second nature. I am often reminded that this isn't second nature to everyone when friends from 'back East' repeatedly ask me, "what time is it in Alaska?" I usually just respond with, "four hours behind you!"

The US recognizes SIX (6) Timezones: East to West they are Eastern, Central, Mountain, Pacific, Alaska, and Hawaii. The Greenwich Mean Time (GMT) alters slightly (by one hour) during Daylight Savings Time (DST), and not all states recognize/use DST, but for Standard Time, these zones in the same order are: GMT -5, GMT -6, GMT -7, GMT -8, GMT -9, GMT -10. For more information on time zones see wwp.greenwichmeantime.com/time-zone/usa/time-zones.htm and for daylight saving information - which changed in 2007 - see wwp.daylight-saving-time.com/

For more OFFICIAL information, the US Government has put it in writing for us - of course! See the UNITED STATES CODE, TITLE 15 - COMMERCE AND TRADE, CHAPTER 6 - WEIGHTS AND MEASURES AND STANDARD TIME, SUBCHAPTER IX - STANDARD TIME
at tycho.usno.navy.mil/260.html


Standard Time Adopted in 1883 (1920)
Central Timezone

Image by Eric Fischer
Central Time extended much further east then.

From "Arthur, Chester Alan," The World Book, 1920.


supermoon
Central Timezone

Image by andre.vanrooyen
From Yahoo News (timezones and times converted to local CAT):

"Thanks to a fluke of orbital mechanics that brings the moon closer to Earth than that it has been in more than 18 years, the biggest full moon of 2011 will occur on Saturday, leading some observers to dub it a supermoon.

On Saturday evening at 9:00 PM Central African Time, the moon will arrive at its closest point to the Earth in 2011: a distance of 221,565 miles (356,575 kilometers) away. And only 50 minutes earlier, at 8:10 PM, the moon will officially be full.

At its peak, the supermoon of March may appear 14 percent larger and 30 percent brighter than lesser full moons (when the moon is at its farthest from Earth), weather permitting. Yet to the casual observer, it may be hard to tell the difference.

The supermoon will not cause natural disasters, such as the Japan earthquake, a NASA scientist has stressed."


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