More on lighter evenings - NOT amateur radio

At the moment the evenings are lighter for 5 mins more at dusk than a week ago. The light follows a sine wave curve and the rate of change speeds up as we go through the winter into spring. As I said recently, the evenings are lighter by an hour at the end of January. At the website below you can change the location and the date.

See http://www.timeanddate.com/sun/uk/cambridge