| Jan 1Sun | 250th anniversary: The hymn "Amazing Grace" was probably first used in a prayer meeting in Olney,...History · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| New Year's Day (Argentina)Holidays · Argentina · Argentina | Argentina | annual | Nager.Date | 4 yr ago |
| New Year's Day (Brazil)Holidays · Brazil · Brazil | Brazil | annual | Nager.Date | 4 yr ago |
| New Year's Day (Canada)Holidays · Canada · Canada | Canada | annual | Nager.Date | 4 yr ago |
| New Year's Day (China)Holidays · China · China | China | annual | Nager.Date | 4 yr ago |
| New Year's Day (France)Holidays · France · France | France | annual | Nager.Date | 4 yr ago |
| New Year's Day (Germany)Holidays · Germany · Germany | Germany | annual | Nager.Date | 4 yr ago |
| New Year's Day (Ireland)Holidays · Ireland · Ireland | Ireland | annual | Nager.Date | 4 yr ago |
| New Year's Day (Italy)Holidays · Italy · Italy | Italy | annual | Nager.Date | 4 yr ago |
| New Year's Day (Netherlands)Holidays · Netherlands · Netherlands | Netherlands | annual | Nager.Date | 4 yr ago |
| New Year's Day (Nigeria)Holidays · Nigeria · Nigeria | Nigeria | annual | Nager.Date | 4 yr ago |
| New Year's Day (Norway)Holidays · Norway · Norway | Norway | annual | Nager.Date | 4 yr ago |
| New Year's Day (Poland)Holidays · Poland · Poland | Poland | annual | Nager.Date | 4 yr ago |
| New Year's Day (South Korea)Holidays · South Korea · South Korea | South Korea | annual | Nager.Date | 4 yr ago |
| New Year's Day (Spain)Holidays · Spain · Spain | Spain | annual | Nager.Date | 4 yr ago |
| New Year's Day (Sweden)Holidays · Sweden · Sweden | Sweden | annual | Nager.Date | 4 yr ago |
| New Year's Day (Ukraine)Holidays · Ukraine · Ukraine | Ukraine | annual | Nager.Date | 4 yr ago |
| 25th anniversary: Argentinian physicist Juan Maldacena published a landmark paper initiating the...History · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| 75th anniversary: British Railways came into existence when the "Big Four" railway companies were...History · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| Jan 2Mon | New Year's DayHolidays · United States · United States | United States | annual | Nager.Date | 4 yr ago |
| New Year's Day (Australia)Holidays · Australia · Australia | Australia | annual | Nager.Date | 4 yr ago |
| New Year's Day (Japan)Holidays · Japan · Japan | Japan | annual | Nager.Date | 4 yr ago |
| New Year's Day (Kenya)Holidays · Kenya · Kenya | Kenya | annual | Nager.Date | 4 yr ago |
| New Year's Day (Mexico)Holidays · Mexico · Mexico | Mexico | annual | Nager.Date | 4 yr ago |
| New Year's Day (New Zealand)Holidays · New Zealand · New Zealand | New Zealand | annual | Nager.Date | 4 yr ago |
| New Year's Day (South Africa)Holidays · South Africa · South Africa | South Africa | annual | Nager.Date | 4 yr ago |
| 2023 NHL Winter ClassicSports · NHL · Fenway Park, Boston | Fenway Park, Boston | annual | Wikipedia | 4 yr ago |
| Jan 3Tue | Quadrantids meteor shower peakSky · Meteor showers | – | annual | International Meteor OrganizationComputed (rule) | 4 yr ago |
| Minnesota Legislature convenes 2023Politics · Government · State Capitol, Saint Paul | State Capitol, Saint Paul | annual | Wikipedia | 4 yr ago |
| 50th anniversary: CBS announced the sale of the New York Yankees professional baseball team to a...History · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| Day after New Year's Day (New Zealand)Holidays · New Zealand · New Zealand | New Zealand | annual | Nager.Date | 4 yr ago |
| Asara B’TevetReligion · Judaism | – | annual | HebcalComputed (rule) | 4 yr ago |
| Jan 4Wed | 325th anniversary: Most of London's Palace of Whitehall, the main residence of English monarchs...History · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| 50th anniversary: Last of the Summer Wine, the longest-running sitcom in the world, premiered as...History · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| Earth at perihelionSky · Earth orbit | – | annual | Astronomy EngineComputed (rule) | 4 yr ago |
| 225th anniversary: After his appointment as Prince of Wallachia, Constantine Hangerli arrived in...History · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| World Braille DayObservances · UN international days | – | annual | United Nations | 4 yr ago |
| Jan 6Fri | EpiphanyReligion · Christianity | – | annual | USCCB liturgical yearComputed (rule) | 4 yr ago |
| Full moon: Wolf MoonSky · Moon phases · 5:08 pm CT | – | monthly | NASAComputed (rule) | 4 yr ago |
| Epiphany (Italy)Holidays · Italy · Italy | Italy | annual | Nager.Date | 4 yr ago |
| Epiphany (Poland)Holidays · Poland · Poland | Poland | annual | Nager.Date | 4 yr ago |
| Epiphany (Spain)Holidays · Spain · Spain | Spain | annual | Nager.Date | 4 yr ago |
| Epiphany (Sweden)Holidays · Sweden · Sweden | Sweden | annual | Nager.Date | 4 yr ago |
| Jan 7Sat | Orthodox Christmas (Julian calendar)Religion · Orthodox Christianity | – | annual | Orthodox Church in AmericaComputed (rule) | 4 yr ago |
| Christmas Day (Orthodox) (Ukraine)Holidays · Ukraine · Ukraine | Ukraine | annual | Nager.Date | 4 yr ago |
| 75th anniversary: Air National Guard pilot Thomas Mantell, flying in pursuit of an alleged UFO,...History · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| Jan 8Sun | 825th anniversary: Lotario dei Conti was elected as Pope Innocent IIIHistory · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| Christmas Day (Orthodox) (Egypt)Holidays · Egypt · Egypt | Egypt | annual | Nager.Date | 4 yr ago |
| Alfred Russel Wallace, born 1823 (200 years)People · Birth anniversaries | – | annual | Wikipedia | 4 yr ago |
| Jan 9Mon | College Football Playoff National Championship 2023Sports · NCAA · SoFi Stadium, Inglewood, California | SoFi Stadium, Inglewood, California | annual | Wikipedia | 4 yr ago |
| Coming of Age Day (Japan)Holidays · Japan · Japan | Japan | annual | Nager.Date | 4 yr ago |
| Jan 10Tue | 100th anniversary: Lithuanian residents of the Klaipėda Region began a revolt, ahead of a League...History · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| 80th Golden Globe AwardsCulture · Awards · Beverly Hilton, Beverly Hills | Beverly Hilton, Beverly Hills | annual | Wikipedia | 4 yr ago |
| Jan 11Wed | 100th anniversary: Troops from France and Belgium invaded the Ruhr to force the Weimar Republic to...History · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| Jan 12Thu | Hande Yener, born 1973 (50 years)People · Birth anniversaries | – | annual | Wikipedia | 4 yr ago |
| Jan 14Sat | 50th anniversary: Elvis Presley's (pictured) concert Aloha from Hawaii via Satellite was...History · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| Last quarter moonSky · Moon phases · 8:11 pm CT | – | monthly | NASAComputed (rule) | 4 yr ago |
| Jan 15Sun | Makar SankrantiReligion · Hinduism | – | annual | WikipediaComputed (rule) | 4 yr ago |
| Jan 16Mon | Martin Luther King, Jr. DayHolidays · United States · United States | United States | annual | Nager.Date | 4 yr ago |
| 2023 Australian OpenSports · Tennis · to Jan 29 · Melbourne Park | Melbourne Park | annual | Wikipedia | 4 yr ago |
| 2050th anniversary: Gaius Octavianus was given the titles Augustus and Princeps by the Roman Senate...History · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| World Economic Forum Annual Meeting 2023Politics · Summits · to Jan 20 · Davos | Davos | annual | Wikipedia | 4 yr ago |
| Jan 17Tue | 250th anniversary: On James Cook's second voyage, his vessel HMS Resolution became the first...History · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| 25th anniversary: The Drudge Report became the first news source to break the Clinton–Lewinsky...History · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| 75th anniversary: Indonesian National Revolution: The Renville Agreement between the Netherlands...History · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| Jan 19Thu | Theophany (Julian calendar)Religion · Orthodox Christianity | – | annual | Orthodox Church in AmericaComputed (rule) | 4 yr ago |
| Auguste Comte, born 1798 (225 years)People · Birth anniversaries | – | annual | Wikipedia | 4 yr ago |
| Janis Joplin, born 1943 (80 years)People · Birth anniversaries | – | annual | Wikipedia | 4 yr ago |
| 2023 Sundance Film FestivalCulture · Film festivals · to Jan 29 · Park City, Utah | Park City, Utah | annual | Wikipedia | 4 yr ago |
| Jan 20Fri | Jeffrey Epstein, born 1953 (70 years)People · Birth anniversaries | – | annual | Wikipedia | 4 yr ago |
| Johannes V. Jensen, born 1873 (150 years)People · Birth anniversaries | – | annual | Wikipedia | 4 yr ago |
| Jan 21Sat | New moonSky · Moon phases · 2:53 pm CT | – | monthly | NASAComputed (rule) | 4 yr ago |
| Lunar New Year (South Korea)Holidays · South Korea · South Korea | South Korea | annual | Nager.Date | 4 yr ago |
| Paul Allen, born 1953 (70 years)People · Birth anniversaries | – | annual | Wikipedia | 4 yr ago |
| Jan 22Sun | Lunar New Year: Year of the RabbitCulture · Lunar calendar festivals | – | annual | Hong Kong ObservatoryComputed (rule) | 4 yr ago |
| 50th anniversary: The U.S. Supreme Court's landmark decision in Roe v. Wade struck down laws...History · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| 750th anniversary: Muhammad II became Sultan of Granada after his father's death in a riding accidentHistory · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| Sergei Eisenstein, born 1898 (125 years)People · Birth anniversaries | – | annual | Wikipedia | 4 yr ago |
| Chinese New Year (Spring Festival) (China)Holidays · China · China | China | annual | Nager.Date | 4 yr ago |
| Jan 23Mon | Lunar New Year (South Korea)Holidays · South Korea · South Korea | South Korea | annual | Nager.Date | 4 yr ago |
| Jan 24Tue | International Day of EducationObservances · UN international days | – | annual | United Nations | 4 yr ago |
| Microsoft earnings (Q2 FY2023)Economy · Earnings | Microsoft (MSFT) | quarterly | Quarterly | 4 yr ago |
| Lunar New Year (South Korea)Holidays · South Korea · South Korea | South Korea | annual | Nager.Date | 4 yr ago |
| 175th anniversary: James W. Marshall discovered gold at Sutter's Mill (reconstruction pictured) in...History · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| Moon Jae-in, born 1953 (70 years)People · Birth anniversaries | – | annual | Wikipedia | 4 yr ago |
| Jan 25Wed | Tesla earnings (Q4 FY2022)Economy · Earnings | Tesla (TSLA) | quarterly | Quarterly | 4 yr ago |
| 25th anniversary: The Liberation Tigers of Tamil Eelam detonated a truck bomb at the sacred...History · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| Corazon Aquino, born 1933 (90 years)People · Birth anniversaries | – | annual | Wikipedia | 4 yr ago |
| IBM earnings (Q4 FY2022)Economy · Earnings | IBM (IBM) | quarterly | Quarterly | 4 yr ago |
| ServiceNow earnings (Q4 FY2022)Economy · Earnings | ServiceNow (NOW) | quarterly | Quarterly | 4 yr ago |
| Jan 26Thu | Vasant PanchamiTentativeReligion · Hinduism | – | annual | WikipediaComputed (rule) | 4 yr ago |
| Australia Day (Australia)Holidays · Australia · Australia | Australia | annual | Nager.Date | 4 yr ago |
| Revolution Day 2011 / National Police Day (Egypt)Holidays · Egypt · Egypt | Egypt | annual | Nager.Date | 4 yr ago |
| 25th anniversary: In a nationally televised press conference, U.S. president Bill Clinton denied...History · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| José Mourinho, born 1963 (60 years)People · Birth anniversaries | – | annual | Wikipedia | 4 yr ago |
| International Day of Clean EnergyObservances · UN international days | – | annual | United Nations | 4 yr ago |
| Intel earnings (Q4 FY2022)Economy · Earnings | Intel (INTC) | quarterly | Quarterly | 4 yr ago |
| Jan 27Fri | 1925th anniversary: Trajan succeeded his adoptive father Nerva as Roman emperorHistory · Anniversaries | – | annual | Wikipedia | 4 yr ago |
| International Holocaust Remembrance DayObservances · UN international days | – | annual | United Nations | 4 yr ago |
| Jan 28Sat | First quarter moonSky · Moon phases · 9:19 am CT | – | monthly | NASAComputed (rule) | 4 yr ago |
