A
Quick Reference to Daylight Saving Time
Daylight Saving Time (DST) is an annual event
which adds one hour of daylight to each day by resetting clocks
forward one hour each spring. Each fall those geographic areas which
follow Daylight Saving Time reset their clocks back to the local
standard time. Though there are many benefits; the most tangible is
energy conservation as a result of lower artificial light usage.
An
atomic clock, of which the time is radio controlled, can simplify
the time change. Watches using the same technology assist travelers
moving between Time zones.
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The chart below is a quick reference to the
2006 through 2008 Daylight Saving Time cycle:
Spring Forward, Fall Back |
YEAR |
SPRING AHEAD 1 HOUR |
FALL BACK 1 HOUR |
2006 |
April 2 |
October 29 |
2007 |
March 11 |
November 4 |
2008 |
March 9 |
November 2 |
Adjust Clock
at 2:00AM |
2:00AM to
3:00AM |
3:00AM to
2:00AM |
|
The Energy Policy Act of 2005 extended Daylight
Saving Time by approximately four weeks effective 2007. Therefore
the spring start date is the second Sunday in March and ends the on
the first Sunday in November.
EXCEPTIONS
Of course there are exceptions to
the observance of Daylight Saving Time. They are as follows:
§ Arizona,
with the exception of the Navajo Indian Reservation, does not follow
Daylight Saving Time. As Phoenix and Tucson are two of the hottest metropolitan areas
in the country, the increased use of air conditioning offsets the
anticipated energy savings as result of the lower lighting usage.
§ Hawaii
does not observe Daylight Saving Time. The change of lighting during the course of
the year is reduced in tropical areas approaching the Equator.
§ Puerto
Rico, the US Virgin Islands, Guam, and American Samoa do not observe
Daylight Saving Time. |