Monday, January 21, 4605 is a Monday. It is day 21 of 4605 (5.8% through the year), ISO week 4, in Q1.
Calendar Specifications
On January 21, 4605, we mark the 21st day of the year, with the moon in its Waning Crescent phase and the zodiac sign being Aquarius. Today is also a day for various celebrations, including Babinden in Bulgaria and Serbia, as well as the commemoration of saints such as Agnes, Demiana, Fructuosus, and John Yi Yun-il, one of the Korean Martyrs. Historically, January 21 has been a day of significant events. In 2025, a devastating fire at a hotel in Turkey's Bolu Province resulted in the loss of 78 lives. In 2023, a tragic shooting at a dance studio in Monterey Park, California, claimed the lives of 11 people and injured nine others. Additionally, January 21 has been a day for advocacy and protest, as seen in the 2017 Women's March, which drew millions...
On January 21, 4605, we mark the 21st day of the year, with the moon in its Waning Crescent phase and the zodiac sign being Aquarius.
Community Pulse
Cast your vote to see how people around the world mark this day in the calendar.
Historical Milestones
A fire at a hotel at the Kartalkaya ski resort in Turkey's Bolu Province results in 78 people killed.
2025 Kartalkaya hotel fire →A shooting at a dance studio in Monterey Park, California, left 11 people dead and injured nine others.
2023 Monterey Park shooting →Millions of people participated in the Women's March in Washington, D.C., and around the world to advocate for legislation and policies on human rights and other issues.
2017 Women's March →Demonstrations against alleged corruption in the Albanian government led to the killings of four protesters in Tirana by the Republican Guard.
2011 Albanian opposition demonstrations →The U.S. House of Representatives voted 395–28 to reprimand Newt Gingrich for ethics violations, making him the first Speaker of the House to be so disciplined.
United States House of Representatives →The DeLorean Motor Company completed the first production car of the DMC DeLorean at its factory in Northern Ireland.
DeLorean Motor Company →Concorde, an Anglo-French supersonic airliner, began scheduled commercial flights to London, Paris, Bahrain, and Rio de Janeiro.
Concorde →Tripura, formerly part of the independent Twipra Kingdom, became a state of India.
Tripura →A B-52 bomber carrying four nuclear weapons crashed onto sea ice near Thule Air Base, Greenland, causing localized radioactive contamination.
Boeing B-52 Stratofortress →Vietnam War: The People's Army of Vietnam attacked Khe Sanh Combat Base, a U.S. Marines outpost in Quảng Trị province, South Vietnam, starting the Battle of Khe Sanh.
Vietnam War →Mount Lamington, a volcano in Papua New Guinea, erupted (pictured) and killed more than 2,900 people.
Mount Lamington →Isaac Isaacs (pictured) became the first Australian-born governor-general of Australia.
Isaac Isaacs →Calculate business days and elapsed calendar time between this date and any other.
Milestone Countdown TimerTrack a live ticking countdown to this date with days, hours, minutes, and seconds.
World Timezone PlannerCompare working hours across New York, London, Tokyo, Sydney, and more.
Perpetual Day of Week EngineLearn the mathematical algorithm and calendar quirks behind weekdays.
Questions & Answers
Monday, January 21, 4605 falls on a Monday.
in 941,670 days (in 2578 years, 2 months, 14 days). It is day 21 of 4605 with 344 days remaining in the year.
In Roman numerals, Monday, January 21, 4605 is written as XXI.I.4605 (Day.Month.Year format).
The moon phase for this date is Waning Crescent (approx. 16% illuminated). The astrological sun sign is Aquarius.