Winter Solstice 2017. The long (and short) of the winter solstice
Winter Solstice 2017 December 21 also marks the first day of astronomical winter — although meteorological winter began December 1. In the Northern Hemisphere, where most of the world’s population lives, the winter solstice marks the shortest day of the year and the longest night.
The good news for sunlight seeking Northern Hemisphere natives is that the days start getting longer beginning Friday — and they can start counting down to spring.