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Winter Solstice – Shortest Day of the Year

Solstices are opposite on either side of the equator, so the winter solstice in the Northern Hemisphere is the summer solstice in the Southern Hemisphere and vice versa.

December solstice illustration

The December Solstice.

The December Solstice is the winter solstice in the Northern Hemisphere, while in the Southern Hemisphere it's the June Solstice. (Ill not to scale)

© timeanddate.com

Northern Hemisphere Winter Solstice:

(North America, Central America, Europe, Asia, northern Africa)

December Solstice in Boston, Massachusetts, USA is on
Monday, December 21, 2020 at 5:02 am EST (Change city)

December Solstice in Universal Coordinated Time is on
Monday, December 21, 2020 at 10:02 UTC

Southern Hemisphere Winter Solstice:

(Australia, New Zealand, South America, Southern Africa)

June Solstice in Boston, Massachusetts, USA is on
Saturday, June 20, 2020 at 5:43 pm EDT (Change city)

June Solstice in Universal Coordinated Time is on
Saturday, June 20, 2020 at 21:43 UTC

First Day or Mid Winter?

In the USA and some other areas in the Northern Hemisphere, the winter solstice marks the first day of winter. However, the official date for the first day of winter varies depending on the country's climate, and whether they follow astronomical or meteorological seasons.

Topics: Astronomy, Seasons, December, June, Sun, Solstice

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