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 TwilightClock Applet
        
        
        
        
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 Press "reload" if necessary. Enter latitude<0 if South, enter longitude<0 if east of Greenwich, 52.51 N and 13.41 E is Berlin (Germany). 
 Try Hammerfest (Norway) at 70.7° N, 23.7° E, located north of the Polar Circle, The sun is visible all day from the end of May until the end of July 
 The sun is unvisible all day from the end of November until the end of January 
 
 For details look at my Daylight Applet Please visit my 
 
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