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Got The Time Zone

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... Many Zones, So Little Time. Remember daylight savings times and be very ... Chicago, Illinois is currently at GMT-5 for Central Daylight Savings Time (CDT) ... – PowerPoint PPT presentation

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Title: Got The Time Zone


1
Got The Time Zone?
  • Since radio signals can cross multiple time zones
    and the international date line, some worldwide
    standard for time and date is needed. This
    standard is coordinated universal time,
    abbreviated UTC. This was formerly known as
    Greenwich mean time (GMT). Other terms used to
    refer to it include Zulu time, universal time,
    and world time.

2
GMT Greenwich Mean Time
  • http//greenwichmeantime.com
  • Navigate in and around this site as much as
    possible ?

3
One Timezone, One Globe
  • Think global not hometown.
  • Know your GTM offset, no need to calculate after
    that.
  • Understand military time.
  • Realize the effect of International Date Line.

4
A Closer Look
  • http//atm.geo.nsf.gov/ieis/time.html
  • Lets spend a few minutes looking over this
    chart.
  • This is for North America and Pacific from East
    to West.
  • Atlantic, Eastern, Central, Mountain, Pacific,
    Alaska, Hawaii

5
So Many Zones, So Little Time
  • Remember daylight savings times and be very aware
    of their dates.
  • For instance, Daylight Savings Time began this
    past Spring.
  • on March 25 for Europe
  • on April 1 for USA and Canada
  • Summer Time ended.
  • on March 25 for Australia
  • The UK is currently on British Summer Time (BST)
    which is GMT1

6
Understanding Your Time
  • Simply be aware of the your own AND other
    international timezones as well.
  • Chicago, Illinois is currently at GMT-5 for
    Central Daylight Savings Time (CDT). This ends
    2am on October 28, 2001, right before SC2001!
  • Chicago, Illinois is at GMT6 forCentral
    Standard Time (CST)
  • An hour will cost you dearly.
  • pretesting time, missing a meeting,
    reorganizingyour schedule, editing many
    documents, scheduling conflicts, looking silly ?

7
Research This Topic
  • http//greenwichmeantime.com
  • http//www.dxing.com/utcgmt.htm
  • http//atm.geo.nsf.gov/ieis/time.html
  • tons of other URLs and maps have passed through
    mailing lists as well

8
Questions or Comments
I am far from the authority on this subject. I
simply want everyone to realize the importance of
researching the many timezones across the world.
Understand we are part of a global project this
year at Supercomputing 2001.
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