Question

when do winter solistic come and how​

Answer 1

Answer:

In the Northern Hemisphere, it is on the 22nd of December, while in the Southern Hemisphere, it is on the 21st of June.

Explanation:

It happens when the respective tropic lines of both the hemispheres(Tropic or Cancer in the north and tropic of capricorn in the south) are directed towards the sun and the sun rays fall straight on the tropics.

Answer 2

Answer:

In 2020, the winter solstice arrives on Monday, December 21, 5:02 A.M. EST, marking the first day of winter in the Northern Hemisphere.

The winter solstice, hiemal solstice or hibernal solstice, also known as midwinter, occurs when one of the Earth's poles has its maximum tilt away from the Sun. It happens twice yearly, once in each hemisphere (Northern and Southern). For that hemisphere, the winter solstice is the day with the shortest period of daylight and longest night of the year, when the Sun is at its lowest daily maximum elevation in the sky.[3] At the pole, there is continuous darkness or twilight around the winter solstice.