&gt; Pretty neat, when I first got it, but after 2007, I had to manually change the timezone on this &quot;auto-setting clock&quot; 4 times a year.<p>That&#x27;s odd, because the WWV signal contains extra flag bits that authoritatively tell you when DST is starting and ending. I guess the manufacturers decided to ignore that data and reimplement the time change themselves.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;WWV_(radio_station)#Daylight_saving_time_and_leap_seconds" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;WWV_(radio_station)#Daylight_s...</a>