Sunday, December 20, 2026

Sunday, December 20, 2026 falls on a Sunday. It is day 354 of the year, ISO week 51, in Q4.

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Sunday, December 20

December 20, 2026 is day 354 of 365, ISO week 51, in Q4. The moon is Waxing Gibbous and the zodiac sign is Sagittarius.

Day of year354
ISO week51
QuarterQ4
Days left11

Sun and Moon Cycles

Moon phase
Waxing Gibbous
Lunar age
11.1 days
Illumination
85%
Season
Autumn in the Northern Hemisphere, spring in the Southern Hemisphere

Zodiac and Holidays

Zodiac
Sagittarius
Observances
No major fixed observance in the built-in calendar
Shareable URL
/date/2026-12-20

Today's Celebrations

December 20
Observance Abolition of Slavery Day, also known as Fête des Cafres (Réunion, French Guiana)
Observance Bo Aung Kyaw Day (Myanmar)
Observance Dominic of Silos
Observance Blessed Michał Piaszczyński
Observance O Clavis
Observance Philogonius
Observance Ursicinus of Saint-Ursanne
Observance Katharina von Bora (Lutheran)

Daily Briefing

Local brief

Sunday, December 20, 2026 combines practical calendar facts with a wider view of the day: 2007: Pablo Picasso's Portrait of Suzanne Bloch was stolen from the São Paulo Museum of Art before being recovered about three weeks later.. Use it to check the date, plan across time zones, and scan the observances and historical markers attached to December 20.

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History for December 20

10 events

Pablo Picasso's Portrait of Suzanne Bloch was stolen from the São Paulo Museum of Art before being recovered about three weeks later.

Portugal transferred the sovereignty over Macau, which it had administered since the mid–16th century, to China.

Mandated by the Dayton Agreement that ended the Bosnian War, the NATO-led Implementation Force (troops pictured) began peacekeeping operations in Bosnia and Herzegovina.

American Airlines Flight 965 crashed into a mountain in Buga, Colombia, killing 159 of the 163 people on board.

The deadliest peacetime maritime disaster in history occurred when the MV Doña Paz (pictured) sank after colliding with an oil tanker in the Tablas Strait in the Philippines, resulting in an estimated 4,385 deaths.

Twelve-year-old Jonelle Matthews disappeared from her home in Greeley, Colorado; her body was not discovered until 2019.

NBC aired the American football match between the New York Jets and the Miami Dolphins without announcers.

Experimental Breeder Reactor I near Arco, Idaho, U.S., became the world's first electricity-generating nuclear power plant when it became able to illuminate four 200-watt light bulbs.

News of the day

Wikimedia Current Events

No current-events archive was available for this date during generation.