You are 41 Years, 00 Months, 10 Days old from December 31, 2025. You were born on Friday and have been alive for 14985 days, your next Birthday will be after 11 Months, 20 Days or Your next birthday is in 355 days. You can see detailed informations about your birthdate below.
| Date Of Birth | December 21, 1984 (Friday) |
|---|---|
| Age From Date: | December 31, 2025 (Wednesday) |
| Age: | 41 Years, 00 Months, 10 Days |
| Birth Day Of The Week: | Friday |
| Age In Months: | 492 Months 10 Day(s) |
| Age In Weeks: | 2140 Weeks 3 Day(s) |
| Age In Days: | 14985 Days |
| Age In Hours: | 359651 Hours (approx.) |
| Age In Minutes: | 21579040 Minutes (approx.) |
| Age In Seconds: | 1294742396 Seconds (approx.) |
| Next Birthday | December 21, 2026 (Monday) |
| Next Birthday After: | 11 Months, 20 Days |
| Is My Birth Year Leap Year? | Year 1984 is a leap year. |
December 21, 1984 Birthday Facts | |
| Do you want to know your zodiac sign? | Your zodiac sign, if your date of birth is December 21, 1984, is Sagittarius.
Famous people with Sagittarius zodiac sign? |
| Century: | You were born in the 20th century |
| Birthday in Roman numerals | XII.XXI.MCMLXXXIV
December 21, 1984 in roman numerals? |
| What is your age in roman numerals? | Years: XLI Months: Days: X |
| Birth Date Season: | You were born in Winter |
| Chinese zodiac sign: | You were born in the Chinese year of the Wood Rat
When is the Chinese Year of the Rat? |
Find out how many days you have been alive, what day of the week you were born on, and how long you have lived in days weeks months and years since your birth date. Chronological Age measures how old you are defined as how many years you have lived since birth.
The information above is calculated using UTC timezone where the date and time is Wednesday, December 31, 2025 10:39:56Here is a random list who born on December 21. For full list please click on the link above.
| Year | Name |
|---|---|
| 1952 | Steve Furniss, American swimmer |
| 1878 | Jan Łukasiewicz, Polish-Irish mathematician and philosopher (d. 1956) |
| 1966 | Kiefer Sutherland, British-Canadian actor, director, and producer |
| 1914 | Frank Fenner, Australian microbiologist and virologist (d. 2010) |
| 1805 | Thomas Graham, Scottish chemist and academic (d. 1869) |
| 1978 | Shaun Morgan, South African musician, singer, and guitarist |
| 1942 | Hu Jintao, Chinese engineer and politician, 5th Paramount leader of China |
| 968 | Minamoto no Yorinobu, Japanese samurai (d. 1048) |
| 1926 | Joe Paterno, American football player and coach (d. 2012) |
| 1932 | Edward Hoagland, American author and critic |
Here is a list of some famous peope who died on December 21. For full list please click on the link above.
| Date | Name |
|---|---|
| 1873 | Francis Garnier, French admiral and explorer (b. 1839) |
| 1948 | Władysław Witwicki, Polish psychologist, philosopher, translator, historian (of philosophy and art) and artist (b. 1878) |
| 1001 | Hugh of Tuscany, Italian margrave (b. 950) |
| 1963 | Jack Hobbs, English cricketer and journalist (b. 1882) |
| 1581 | Jean de la Cassière, 51st Grandmaster of the Knights Hospitaller (b. 1502) |
| 2009 | Edwin G. Krebs, American biochemist and academic, Nobel Prize laureate (b. 1918) |
| 1929 | I. L. Patterson, American politician, 18th Governor of Oregon (b. 1859) |
| 956 | Sun Sheng, Chinese chancellor |
| 1869 | Friedrich Ernst Scheller, German jurist and politician (b. 1791) |
| 2014 | Udo Jürgens, Austrian-Swiss singer-songwriter and pianist (b. 1934) |
Here is a list of some events happened on December 21. For full list please click on the link above.
| Date | Event |
|---|---|
| 1861 | Medal of Honor: Public Resolution 82, containing a provision for a Navy Medal of Valor, is signed into law by President Abraham Lincoln. |
| 1970 | First flight of F-14 multi-role combat aircraft. |
| 1999 | The Spanish Civil Guard intercepts a van loaded with 950 kg of explosives that ETA intended to use to blow up Torre Picasso in Madrid, Spain. |
| 1832 | Egyptian–Ottoman War: Egyptian forces decisively defeat Ottoman troops at the Battle of Konya. |
| 1907 | The Chilean Army commits a massacre of at least 2,000 striking saltpeter miners in Iquique, Chile. |
| 1620 | Plymouth Colony: William Bradford and the Mayflower Pilgrims land near what is now known as Plymouth Rock in Plymouth, Massachusetts. |
| 1988 | A bomb explodes on board Pan Am Flight 103 over Lockerbie, Dumfries and Galloway, Scotland, killing 270. |
| 1883 | The Royal Canadian Dragoons and The Royal Canadian Regiment, the first Permanent Force cavalry and infantry regiments of the Canadian Army, are formed. |
| 1979 | Lancaster House Agreement: An independence agreement for Rhodesia is signed in London by Lord Carrington, Sir Ian Gilmour, Robert Mugabe, Joshua Nkomo, Bishop Abel Muzorewa and S.C. Mundawarara. |
| 1995 | The city of Bethlehem passes from Israeli to Palestinian control. |