Why is my HTC phone clock setting my default locaton to Albania?

I have an HTC desire with the Android operating system. Today at around 4 o clock, I noticed that my phone’s clock widget said my location was Tirana (the capital city of Albania) and gave me the time and temperature of that particular locale (several hours into the evening and several degrees cooler than my hometown in TN).

I went in and manually reset my location to my city in Tennessee. A few hours later, it reset to Tirana, Albania again, and my time and weather data changed as well. I switched it back manually again, cleared my cache, and restarted my phone. It switched back to Tirana again after I turned it back on. I manually changed it to TN again and it stayed that way for the rest of the night…

…until just now, though the time is still consistent with my locale.

Why does my phone insist that I’m in Albania? This is really damn annoying.