Skycscan equitytime clock model 86742

http://www.fixya.com/support/t10700249-change_from_central_standard_time

Hello
Get into this link. You can get user manuals for many models of Skyscan clocks there. OK.
http://www.atomicclocksstore.com/skyscan-atomic-clock-model-86931-manual

Hello

The SkyScan ATOMIC Clock

With the Skyscan Atomic Clock, you have the most accurate timepiece within the continent. It can receive the time signal transmitted by the National Institute of Standards and Technology (NIST), which is regulated by 3 atomic clocks and deviates less than 1 second within 3,000 years. The NIST broadcasts the time signal (WWVB, 60kHz) continuously from Fort Collins, Colorado. This signal can be received anywhere in the continental USA that long wave (AM) radio reception is possible with a portable radio. It is expected that the signal can cover a distance of over 2,000 miles from the transmitter. Therefore, your clock will receive the signal within the broadcast range anywhere an AM signal can be received; generally the signal cannot be picked up in massive metal and concrete structures unless near a window. In addition, some environmental effects (see next page) may affect the transmitting distance.

Hello
http://www.atomicclocksstore.com/
Get into this link. You can download the user manual for your SkyScan clock from here.
OK.

Press the Mode button to display the alarm time then press the Adjust button till you get tot the corret time zone, press Mode again once have found the coreect timezone.

May I get the model # to help you more

TO SET ALARM:

Press mode to go to alarm screen (AL shows above temp)

Hold the alarm on/off button for about 5 seconds and the hour will flash.

Press the adjust button to change the hour.

Press the alarm on/off button again to move to minute

Press the adjust button to change the minutes

Press the mode key to save and exit
Good Luck and please rate 4 thumbs for the free answer

This solution from the answers below worked on my model 40007 clock today: If you hold down the button on top that says DST for like 10 seconds it will allow you to force change the time.
Thanks. wd 11/21/2010

The clock will set itself at specific time set times, this is likely to be at 0200 0400 and 0600.
You will however be required to set the time zone, the switch is likely to be on the back.
INFO:
Atomic Time Synchronisation:
How does it work.
SHORT VERSION:
Radio set clocks and watches receive a 60-kilohertz, radio signal from the NIST the official timekeeper for the US and is located in Boulder, Colorado. Ft. Collins. they use atomic clocks and transmits this official time via high frequency short-wave and low frequency AM radio signals, satellite transmission, Internet, and via telephone.
??
REFERANCE LINKS:
OFFICAL TIME:
http://www.time.gov/timezone.cgi?Eastern/d/-5/java
PHOTO OF ANTANA TRANSMITTERS:
http://tf.nist.gov/stations/wwvb.htm