How many hours of daylight is there in winter?

That depends on your latitude. You can use the U.S. Naval Observatory's Sunrise-Sunset Calculator to see the time of sunrise and sunset for any date, anywhere in the world, at the link below.

The Winter Solstice has 8 hours of daylight.

In south of Norway, winter daylight is approximately 9 to 16, 7-8 hours. In north of Norway, north of the Polar Circle, there are periods in the winter with no daylight at all. At Nordkapp, the...

depends where on the earth you are. it could shorten the amout of dailight in the northern hemishere and may extend in the southern ,

From sunrise to sunset is about nine hours and about fifteen minutes. This doesn't include the twilight before sunrise or after sunset (about thirty minutes or so on each end).