- On 1964-09-12, Andy Summers performed with Zoot Money's Big Roll Band at the Corn Exchange in Chelmsford, England, UK.
- On 1976-09-12, Curved Air returned to London, England, UK.
- On 1977-09-12, Stewart Copeland was at Trident Studios for a master disc recut - later The Police rehearsed in London, England, UK.
- On 1978-09-12, Stewart Copeland promoted Klark Kent in London, England, UK - Andy Summers visited Stewart to finish the radio ad they had begun yesterday.
- On 1980-09-12, Stewart Copeland and Sonja Kristina went to see the Stray Cats at The Venue in London, England, UK.
- On 1981-09-12, Sting performed at The Theatre Royal in London, England, UK (The Secret Policeman's Other Ball) - while The Flying Padovanis performed at the Moonlight Club.
- On 1982-09-12, Sting was in Newcastle, England, UK - while Stewart Copeland was in London, England, UK.
- On 1983-09-12, Sting was in Los Angeles, CA, USA.
- On 1985-09-12, Stewart Copeland recorded in New York, NY, USA - while Sting spent a day off in New York, NY, USA.
- On 1988-09-12, the "Human Rights Now" entourage including Sting met the President Oscar Arias in San José, Costa Rica.
- On 1989-09-12, Sting performed at the National Theatre in Washington, DC, USA.
- On 1990-09-12, Sting and Joe Sumner watched the football match England vs. Hungary at Wembley Stadium.
- On 1995-09-12, Sting attended the "Merrick Leverburg 25th Anniversary" in London, England, UK - while Henry Padovani met Lady Diana in Modena, Italy.
- On 1997-09-12, Stewart Copeland was writing and recording songs with other musicians at Miles Copeland's Château Marouatte in France.
- On 2000-09-12, Sting performed on the East Meadow of Central Park in New York, NY, USA.
- On 2001-09-12, Sting probably spent the day at Il Palagio.
- On 2002-09-12, Andy Summers performed at the Teatro de la Ciudad in Mexico City, Mexico.
- On 2003-09-12, Sting performed at the Mermaid Theatre in London, England, UK.
- On 2004-09-12, Stewart Copeland attended the 2004 Emmy Creative Arts Awards at the Shrine Auditorium in Los Angeles, CA, USA.
- On 2007-09-12, Sting was photographed leaving the sex nightclub "Relax" in Hamburg, Germany.
- On 2009-09-12, Sting rehearsed at Durham Cathedral's Chapter House in Durham, England, UK.
- On 2011-09-12, Andy Summers flew from Florianopolis, Brazil to Buenos Aires, Argentina - while Stewart Copeland promoted Ben Hur Live in Rome, Italy
- On 2012-09-12, Stewart Copeland and his wife attended the premiere of "The Book Of Mormon" at the Pantages Theatre in Los Angeles, CA, USA.