21 December 2023

21 December 2023 was ...

• 355th day of the year. There were then 10 days left in 2023.
• 51st Thursday of 2023.
• on the 51st week of 2023 (using ISO standard week number calculation).
• 1st day of Winter. There were 89 days left till Spring.
• Birthstone for this day: Turquoise & Blue Topaz

21 December 2023 European Union Holidays & Popular Observances

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

21 December 2023 Popular Holidays & Observances Worldwide

• Winter Solstice / 1st Day of Winter (Northern Hemisphere)
• Summer starts (Inicio del Verano) - Peru
• Winter Solstice - Switzerland & Moldova
• 1st Day of Winter (1er jour de l'hiver) - Belgium
• Winter Solstice (Solstice D'hiver) - Belgium