December 21st, 2021, will fall on a Tuesday. It will be day 355 of 2021. The decade will be the 2020s.
Basic facts and information about this date:
Zodiac & Birthstone information:
Celebrities and historical figures that were born on the 21st of December:
Interesting facts about conception dates.
Events that have occurred on the 21st of December:
A countdown timer for December 21st, 2021.
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