December 20: National Days, Holidays & Observances
December 20 is day 354 of the year, with 11 days left until the year ends. In 2026 it falls on a Sunday. There are 2 observances on this date.
International Human Solidarity Day
International Human Solidarity Day on December 20 celebrates unity in diversity and the fight against poverty. UN history, real examples, SDG links,…
Macao SAR Establishment Day
Macao SAR Establishment Day on December 20 marks the 1999 handover from Portugal to China. History, timeline, East-meets-West heritage, celebrations and FAQs.