December 21
| << | December | >> | ||||
|---|---|---|---|---|---|---|
| Su | Mo | Tu | We | Th | Fr | Sa |
| 1 | 2 | 3 | 4 | 5 | 6 | |
| 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| 28 | 29 | 30 | 31 | |||
| 2025 | ||||||
| December 21 in recent years |
| 2024 (Saturday) |
| 2023 (Thursday) |
| 2022 (Wednesday) |
| 2021 (Tuesday) |
| 2020 (Monday) |
| 2019 (Saturday) |
| 2018 (Friday) |
| 2017 (Thursday) |
| 2016 (Wednesday) |
| 2015 (Monday) |
December 21 is the 355th day of the year (356th in leap years) in the Gregorian calendar; 10 days remain until the end of the year.