Switch computer back to Eastern time

[Matthew Flaschen]

I use KDE.  Since my clock was a couple minutes early, I decided to 
setup automatic time updating via NTP.  Thus, I opened the KDE clock 
applet (Adjust Date & Time) and selected "Set date and time 
automatically".  Ever since, my clock (both KDE and the date command) 
has displayed UTC time though I live in the U.S. EST zone.  I have 
disabled NTP and tried moving the timezone back and forth, but my 
computer seems to be stuck on UTC.

How can I make it display time in EST?

Matt Flaschen