December solstice

UT date and time of
equinoxes and solstices on Earth^[1]^[2]
event	equinox		solstice		equinox		solstice
month	March^[3]		June^[4]		September^[5]		December^[6]
year	day	time	day	time	day	time	day	time
2019	20	21:58	21	15:54	23	07:50	22	04:19
2020	20	03:50	20	21:43	22	13:31	21	10:03
2021	20	09:37	21	03:32	22	19:21	21	15:59
2022	20	15:33	21	09:14	23	01:04	21	21:48
2023	20	21:25	21	14:58	23	06:50	22	03:28
2024	20	03:07	20	20:51	22	12:44	21	09:20
2025	20	09:02	21	02:42	22	18:20	21	15:03
2026	20	14:46	21	08:25	23	00:06	21	20:50
2027	20	20:25	21	14:11	23	06:02	22	02:43
2028	20	02:17	20	20:02	22	11:45	21	08:20
2029	20	08:01	21	01:48	22	17:37	21	14:14

The December solstice, also known as the southern solstice, is the solstice that occurs each December – typically on 21 December, but may vary by one day in either direction according to the Gregorian calendar. In the Northern Hemisphere, the December solstice is the winter solstice (the day with the shortest period of daylight), whilst in the Southern Hemisphere it is the summer solstice (the day with the longest period of daylight).

The solstice also marks the changing of seasons in many countries. 21 December is the first day of winter (in the Northern Hemisphere) and the first day of summer (in the Southern Hemisphere).

^ Astronomical Applications Department of USNO. "Earth's Seasons - Equinoxes, Solstices, Perihelion, and Aphelion". Retrieved 1 August 2022.
^ "Solstices and Equinoxes: 2001 to 2100". AstroPixels.com. 20 February 2018. Retrieved 21 December 2018.
^ Équinoxe de printemps entre 1583 et 2999
^ Solstice d’été de 1583 à 2999
^ Équinoxe d’automne de 1583 à 2999
^ Solstice d’hiver

[USNO-1] Astronomical Applications Department of USNO. "Earth's Seasons - Equinoxes, Solstices, Perihelion, and Aphelion". Retrieved 1 August 2022.

[2] "Solstices and Equinoxes: 2001 to 2100". AstroPixels.com. 20 February 2018. Retrieved 21 December 2018.

[3] Équinoxe de printemps entre 1583 et 2999

[4] Solstice d’été de 1583 à 2999

[5] Équinoxe d’automne de 1583 à 2999

[6] Solstice d’hiver

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