Hacker News Reader

I used to have an alarm clock, purchased in Germany, that would reset itself to German time every day. This was undesirable, since I lived in England (1 hour behind).

The diagram from Wikipedia suggests a very long range, Denmark should be no problem: http://en.wikipedia.org/wiki/DCF77#Reception_area

View on HN

You should have bought a "Rugby" clock in England. Many of these clocks come in four different versions: Japan, Europe, UK and USA, depending on which signal they use (JFY, DCF77, Rugby, WWVB)

DCF77 works OK in Denmark, provided you don't have too much local noise (switch-modes, old televisions etc. etc.)

Reply on news.ycombinator.com