20 December 2023

• 354th day of the year. There were then 11 days left in 2023.
• 51st Wednesday of 2023.
• on the 51st week of 2023 (using ISO standard week number calculation).
• 89th day of Fall. There is one day left till Winter.
• Birthstone for this day: Turquoise & Blue Topaz

There are no major holidays or observances in the EU for this date.

• International Human Solidarity Day - Popular in:
  CountryAustraliaCanadaIndiaNew ZealandSouth AfricaUnited KingdomUnited States
• Día Internacional de la Solidaridad - Popular in: Latin America