| Aug 1Fri | Lughnasadh (Lammas)Religion · Pagan and Wiccan | – | annual | Wheel of the YearComputed (rule) | 14 mo ago |
| First quarter moonSky · Moon phases · 7:42 am CT | – | monthly | NASAComputed (rule) | 14 mo ago |
| Aug 2Sat | 925th anniversary: While on a hunting trip in the New Forest, King William II of England was...History · Anniversaries | – | annual | Wikipedia | 14 mo ago |
| Aug 3Sun | Tisha B’AvReligion · Judaism | – | annual | HebcalComputed (rule) | 14 mo ago |
| 50th anniversary: A privately chartered Boeing 707 (aircraft involved pictured) struck a mountain...History · Anniversaries | – | annual | Wikipedia | 14 mo ago |
| Aug 4Mon | August Holiday (Ireland)Holidays · Ireland · Ireland | Ireland | annual | Nager.Date | 14 mo ago |
| Queen Elizabeth the Queen Mother, born 1900 (125 years)People · Birth anniversaries | – | annual | Wikipedia | 14 mo ago |
| Palantir earnings (Q2 FY2025)Economy · Earnings | Palantir (PLTR) | quarterly | Quarterly | 14 mo ago |
| Aug 5Tue | 2000th anniversary: Liu Xiu (pictured) proclaimed himself the monarch of the Han dynasty as Emperor...History · Anniversaries | – | annual | Wikipedia | 14 mo ago |
| 425th anniversary: Scottish nobleman John Ruthven, 3rd Earl of Gowrie, was killed during what was...History · Anniversaries | – | annual | Wikipedia | 14 mo ago |
| 925th anniversary: Henry I was crowned King of England in Westminster AbbeyHistory · Anniversaries | – | annual | Wikipedia | 14 mo ago |
| Guy de Maupassant, born 1850 (175 years)People · Birth anniversaries | – | annual | Wikipedia | 14 mo ago |
| AMD earnings (Q2 FY2025)Economy · Earnings | AMD (AMD) | quarterly | Quarterly | 14 mo ago |
| Aug 6Wed | International Day of Awareness of the Special Development Needs and Challenges of Landlocked Developing CountriesObservances · UN international days | – | annual | United Nations | 14 mo ago |
| Shopify earnings (Q2 FY2025)Economy · Earnings | Shopify (SHOP) | quarterly | Quarterly | 14 mo ago |
| Uber earnings (Q2 FY2025)Economy · Earnings | Uber (UBER) | quarterly | Quarterly | 14 mo ago |
| Aug 7Thu | 175th anniversary: The first section of the Great Northern Railway, now the southern section of...History · Anniversaries | – | annual | Wikipedia | 14 mo ago |
| Charlize Theron, born 1975 (50 years)People · Birth anniversaries | – | annual | Wikipedia | 14 mo ago |
| Datadog earnings (Q2 FY2025)Economy · Earnings | Datadog (DDOG) | quarterly | Quarterly | 14 mo ago |
| Aug 9Sat | Raksha BandhanTentativeReligion · Hinduism | – | annual | WikipediaComputed (rule) | 14 mo ago |
| Full moon: Sturgeon MoonSky · Moon phases · 2:55 am CT | – | monthly | NASAComputed (rule) | 14 mo ago |
| National Women's Day (South Africa)Holidays · South Africa · South Africa | South Africa | annual | Nager.Date | 14 mo ago |
| International Day of the World's Indigenous PeoplesObservances · UN international days | – | annual | United Nations | 14 mo ago |
| Aug 11Mon | 50th anniversary: The Timorese Democratic Union launched a coup in Portuguese Timor, starting the...History · Anniversaries | – | annual | Wikipedia | 13 mo ago |
| Mountain Day (Japan)Holidays · Japan · Japan | Japan | annual | Nager.Date | 13 mo ago |
| Steve Wozniak, born 1950 (75 years)People · Birth anniversaries | – | annual | Wikipedia | 13 mo ago |
| World Steelpan DayObservances · UN international days | – | annual | United Nations | 13 mo ago |
| Aug 12Tue | Perseids meteor shower peakSky · Meteor showers | – | annual | International Meteor OrganizationComputed (rule) | 13 mo ago |
| International Youth DayObservances · UN international days | – | annual | United Nations | 13 mo ago |
| 25th anniversary: Kursk, an Oscar-class submarine of the Russian Navy, suffered an on-board...History · Anniversaries | – | annual | Wikipedia | 13 mo ago |
| Aug 13Wed | 375th anniversary: General George Monck founded Monck's Regiment of Foot, the predecessor to the...History · Anniversaries | – | annual | Wikipedia | 13 mo ago |
| ObonReligion · Buddhism · to Aug 16 | – | annual | WikipediaComputed (rule) | 13 mo ago |
| Cisco earnings (Q4 FY2025)Economy · Earnings | Cisco (CSCO) | quarterly | Quarterly | 13 mo ago |
| Aug 14Thu | 50th anniversary: The Rocky Horror Picture Show premiered in London, the first in its...History · Anniversaries | – | annual | Wikipedia | 13 mo ago |
| Aug 15Fri | Assumption of MaryReligion · Christianity | – | annual | USCCB liturgical yearComputed (rule) | 13 mo ago |
| Assumption (Spain)Holidays · Spain · Spain | Spain | annual | Nager.Date | 13 mo ago |
| Assumption Day (France)Holidays · France · France | France | annual | Nager.Date | 13 mo ago |
| Assumption Day (Italy)Holidays · Italy · Italy | Italy | annual | Nager.Date | 13 mo ago |
| Assumption Day (Poland)Holidays · Poland · Poland | Poland | annual | Nager.Date | 13 mo ago |
| Liberation Day (South Korea)Holidays · South Korea · South Korea | South Korea | annual | Nager.Date | 13 mo ago |
| Premier League season starts 2025Sports · Soccer | – | annual | Wikipedia | 13 mo ago |
| Aug 16Sat | Krishna JanmashtamiTentativeReligion · Hinduism | – | annual | WikipediaComputed (rule) | 13 mo ago |
| Last quarter moonSky · Moon phases · 12:12 am CT | – | monthly | NASAComputed (rule) | 13 mo ago |
| 125th anniversary: Second Boer War: A 10,000-strong column of soldiers led by Lord Kitchener broke...History · Anniversaries | – | annual | Wikipedia | 13 mo ago |
| Aug 17Sun | General José de San Martín Memorial Day (Argentina)Holidays · Argentina · Argentina | Argentina | annual | Nager.Date | 13 mo ago |
| 75th anniversary: Korean War: Forty-two American prisoners of war were massacred by the Korean...History · Anniversaries | – | annual | Wikipedia | 13 mo ago |
| Aug 19Tue | 300th anniversary: J. S. Bach led the first performance of Lobe den Herren, den mächtigen König...History · Anniversaries | – | annual | Wikipedia | 13 mo ago |
| Mercury at greatest western elongationSky · Planets | – | recurring | Astronomy EngineComputed (rule) | 13 mo ago |
| 75th anniversary: The 766th Independent Infantry Regiment of North Korea was disbanded after...History · Anniversaries | – | annual | Wikipedia | 13 mo ago |
| World Humanitarian DayObservances · UN international days | – | annual | United Nations | 13 mo ago |
| Aug 20Wed | 75th anniversary: Korean War: United Nations forces repelled an attempt by North Korea to capture...History · Anniversaries | – | annual | Wikipedia | 13 mo ago |
| Aug 21Thu | Minnesota State Fair 2025Culture · Minnesota · to Sep 1 · State Fairgrounds, Falcon Heights | State Fairgrounds, Falcon Heights | annual | Minnesota State FairComputed (rule) | 13 mo ago |
| International Day of Remembrance and Tribute to the Victims of TerrorismObservances · UN international days | – | annual | United Nations | 13 mo ago |
| Aug 22Fri | International Day Commemorating the Victims of Acts of Violence Based on Religion or BeliefObservances · UN international days | – | annual | United Nations | 13 mo ago |
| Aug 23Sat | New moonSky · Moon phases · 1:07 am CT | – | monthly | NASAComputed (rule) | 13 mo ago |
| 2025 Vuelta a EspañaSports · Cycling · to Sep 14 · Spain | Spain | annual | Wikipedia | 13 mo ago |
| 250th anniversary: King George III issued a proclamation that declared elements of the American...History · Anniversaries | – | annual | Wikipedia | 13 mo ago |
| International Day for the Remembrance of the Slave Trade and Its AbolitionObservances · UN international days | – | annual | United Nations | 13 mo ago |
| Aug 24Sun | 2025 US Open (tennis)Sports · Tennis · to Sep 7 · USTA Billie Jean King National Tennis Center, New York | USTA Billie Jean King National Tennis Center, New York | annual | Wikipedia | 13 mo ago |
| Independence Day (Ukraine)Holidays · Ukraine · Ukraine | Ukraine | annual | Nager.Date | 13 mo ago |
| Aug 25Mon | 50th anniversary: Bruce Springsteen released his commercial breakthrough album, Born to RunHistory · Anniversaries | – | annual | Wikipedia | 13 mo ago |
| 150th anniversary: Matthew Webb became the first person to swim across the English Channel, doing...History · Anniversaries | – | annual | Wikipedia | 13 mo ago |
| Aug 26Tue | MongoDB earnings (Q2 FY2026)Economy · Earnings | MongoDB (MDB) | quarterly | Quarterly | 13 mo ago |
| Aug 27Wed | Ganesh ChaturthiTentativeReligion · Hinduism · to Sep 6 | – | annual | WikipediaComputed (rule) | 13 mo ago |
| Nvidia earnings (Q2 FY2026)Economy · Earnings | Nvidia (NVDA) | quarterly | Quarterly | 13 mo ago |
| 82nd Venice International Film FestivalCulture · Film festivals · to Sep 6 · Venice Lido | Venice Lido | annual | Wikipedia | 13 mo ago |
| World Lake DayObservances · UN international days | – | annual | United Nations | 13 mo ago |
| CrowdStrike earnings (Q2 FY2026)Economy · Earnings | CrowdStrike (CRWD) | quarterly | Quarterly | 13 mo ago |
| Snowflake earnings (Q2 FY2026)Economy · Earnings | Snowflake (SNOW) | quarterly | Quarterly | 13 mo ago |
| Aug 28Thu | 1550th anniversary: Orestes took control of Ravenna, the capital of the Western Roman Empire,...History · Anniversaries | – | annual | Wikipedia | 13 mo ago |
| Dormition of the Theotokos (Julian calendar)Religion · Orthodox Christianity | – | annual | Orthodox Church in AmericaComputed (rule) | 13 mo ago |
| Gophers football 2025 openerSports · Minnesota teams · Huntington Bank Stadium, Minneapolis | Huntington Bank Stadium, Minneapolis | annual | Wikipedia | 13 mo ago |
| 75th anniversary: American tennis player Althea Gibson became the first African-American woman to...History · Anniversaries | – | annual | Wikipedia | 13 mo ago |
| Aug 29Fri | 550th anniversary: France signed the Treaty of Picquigny with England, freeing Louis XI to deal...History · Anniversaries | – | annual | Wikipedia | 13 mo ago |
| 675th anniversary: Hundred Years' War: Led by King Edward III, a fleet of 50 English ships...History · Anniversaries | – | annual | Wikipedia | 13 mo ago |
| Qixi FestivalCulture · Lunar calendar festivals | – | annual | Hong Kong ObservatoryComputed (rule) | 13 mo ago |
| International Day against Nuclear TestsObservances · UN international days | – | annual | United Nations | 13 mo ago |
| Aug 30Sat | 225th anniversary: Gabriel Prosser planned to hold a slave rebellion in Virginia, U.S., but it was...History · Anniversaries | – | annual | Wikipedia | 13 mo ago |
| International Day of the Victims of Enforced DisappearancesObservances · UN international days | – | annual | United Nations | 13 mo ago |
| Aug 31Sun | First quarter moonSky · Moon phases · 1:25 am CT | – | monthly | NASAComputed (rule) | 13 mo ago |
| International Day for People of African DescentObservances · UN international days | – | annual | United Nations | 13 mo ago |
