2007-12-24 16:19:25 · 5 answers · asked by bob m 3 in Science & Mathematics ➔ Weather
It varies. Usually around 2mins per day and gradually increases to 4mins per day around the equinox (March 21st).
After the equinox it slows down again to 2mins per day by the time of summer solstice. A good way to find out is to look up sunrise and sunset times in a diary, and check the differences in times from the solstice to the equinox, then from the equinox to the next solstice.
The latitude also plays a part as well. The further north the greater the variation.
2007-12-24 17:04:34 · answer #1 · answered by Zheia 6 · 3⤊ 0⤋
At the beginning of winter, it takes a few days before it starts going back to getting lighter, due to the reaction of the daylight, then when it starts it usually begins slowly, about 1 minute every other day, then around February, it is ususally about 2-3 minutes a day.
2007-12-25 00:37:59 · answer #2 · answered by trey98607 7 · 0⤊ 0⤋
The length of day plotted on a graph looks like a sine wave through one year. The maximum rates of change are in March and September. The peak in June and the Minimum in December have very little rate of change as you would expect if you look at a sine wave.
2007-12-24 19:10:37 · answer #3 · answered by eastanglianuk1951 3 · 1⤊ 0⤋
The period varies but on average it is around 3 minutes.
2007-12-24 20:22:10 · answer #4 · answered by Mark G 7 · 0⤊ 0⤋
you can work it out yourself if you look at the sunrise and sunset times
http://www.sunrisesunset.com/calendar.asp?comb_city_info=London,%20United%20Kingdom;0;51.5;0;2&month=12&year=2007&time_type=0
2007-12-25 06:13:46 · answer #5 · answered by derbydolphin 7 · 0⤊ 0⤋