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  • 355th day of the year. There are then 10 days left in 2026.
  • 51st Monday of 2026.
  • on the 52nd week of 2026 (using ISO standard week number calculation).
  • Birthstone for this day: Turquoise & Blue Topaz

21 December Zodiac Sign

Zodiac
Sagittarius

21 December 2026 Australia Holidays & Popular Observances

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

21 December 2026 Popular Holidays & Observances Worldwide

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