Festival09/24/2026@CityDesk
The Rockefeller Center Christmas Tree Is Lit for 2026
Tishman SpeyerThe Rockefeller Center Christmas Tree, Rockefeller Plaza, Midtown, Manhattan Community Board 5, Manhattan, New York County, New York, 10111, United States
Starts 12/02/2026ESTIMATED 66% CONFIDENCEin 69 daysEstimated from the pattern, per en.wikipedia.org^[1]: the tree is "lit in a public ceremony on the last Wednesday of November or first Wednesday of December and following Thanksgiving"; Thanksgiving 2026 falls on 26 November (macysinc.com^[2]), so the ceremony should be Wednesday 2 December. No official 2026 date has been announced.
The Rockefeller Center Christmas tree is lit in a televised ceremony on the Wednesday after Thanksgiving, expected on 2 December 2026, opening the holiday season in Midtown.
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Transport09/15/2026@BuildDesk
NYC Targets 2030s for the Interborough Express
Bay Ridge, Brooklyn, New York, USAMetropolitan Transportation Authority
Starts 12/31/2033ESTIMATED 66% CONFIDENCEin 7.3 yearsGiven as scheduled, per the source^[1]: "officials said they expect the first trains to run in the 2030s."
The MTA is pushing ahead on a new light rail line linking Brooklyn and Queens via a freight corridor that has never had passenger subway service.
$5.5B
0.66
Sports09/24/2026@SportDesk
The NYC Marathon Runs Its 50th Five-Borough Course
New York Road RunnersWest Drive, Columbus Circle, Manhattan, New York County, New York, 10023, United States
Starts 11/01/2026SCHEDULED 81% CONFIDENCEin 38 daysGiven as scheduled, per timeout.com^[1]: "When the marathon returns on Sunday, November 1, runners will follow a slightly different path"; NYRR's^[2][5] release says "Taking place Sunday, Nov. 1".
Nearly 60,000 runners are expected on Sunday 1 November 2026 for the TCS New York City Marathon, marking 50 years of the five-borough course on a route changed for the first time since 2011.
0.65
Music09/24/2026@MusicDesk
Boston Calling Returns After Its 2026 Gap Year
C3 PresentsHarvard Athletic Complex, South Campus Drive, Barry's Corner, Allston, Boston, Suffolk County, Massachusetts, 02163, United States
06/04/2027 - 06/06/2027SCHEDULED 76% CONFIDENCEin 253 daysGiven as scheduled on the festival's own site: "Boston Calling^[1] Music Festival | Boston, MA | June 4 - 6, 2027 ... SEE YOU IN 2027", matching the organisers' post quoted by Boston.com^[3]: "an exciting return on a new weekend: June 4-6, 2027."
New England's largest music festival comes back to the Harvard Athletic Complex on 4-6 June 2027, a new weekend after years on Memorial Day, having skipped 2026. Mayor Michelle Wu linked the gap year to the strain of Boston's 250th and World Cup events.
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Weather09/24/2026@ClimateDesk
Blizzard of 2026 Buries Boston Under 17 Inches of Snow
National Weather ServiceLogan International Airport, 1, Harborside Drive, East Boston, Boston, Suffolk County, Massachusetts, 02128, United States
Starts 02/23/2026CONFIRMED 82% CONFIDENCE213 days agoStated as fact, per CBS Boston: "The Blizzard of 2026 left more than three feet of snow in parts of Massachusetts Monday" (Monday 23 February 2026, the article titled "from Blizzard of February 23, 2026").^[1]
The Blizzard of 2026 dropped 17.1 inches on Logan Airport on 23 February 2026 and more than three feet on parts of southeastern Massachusetts, with a 68 mph gust at Logan and Boston's first blizzard warning since January 2022.
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Climate09/21/2026@ClimateDesk
COP31 Opens in Antalya
United Nations Framework Convention on Climate ChangeAntalya Expo Center, Antalya, Türkiye
11/09/2026 - 11/20/2026SCHEDULED 80% CONFIDENCEin 46 daysUNFCCC^[1] states the Government of Türkiye will host the thirty-first session "from Monday, 9 November, to Friday, 20 November 2026"; the pin's exclusive end is the following midnight UTC.
The 31st UN climate conference runs 9-20 November 2026 at the Antalya Expo Center, hosted by Türkiye, with about 100,000 participants expected.
0.63
Architecture09/15/2026@BuildDesk
Bloomberg Opens Its Sustainability-Focused London Headquarters
3 Queen Victoria Street, City of London, London, United KingdomFoster + Partners
Starts 10/24/2017CONFIRMED 90% CONFIDENCE8.9 years agoThe B1M’s article (published 10 January 2018) already described the building as recently opened, and independent design press dated the official opening precisely. Happened as dated, per the source^[1]: "officially opened on 24 October 2017, with an event hosted by founder Michael R. Bloomberg".
Foster + Partners’ new Bloomberg European headquarters in the City of London opened with the highest BREEAM sustainability score ever awarded to a major office building.
£1B
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Conference09/24/2026@TechDesk
VMware Explore on Tour Mumbai 2026
BroadcomJio World Convention Centre, Avenue 3, G Block, Bandra Kurla Complex, Mumbai, Maharashtra 400024, India
09/29/2026 - 09/30/2026SCHEDULED 85% CONFIDENCEin 5 daysVMware's^[1][2] Mumbai event page reads "Mumbai | Jio World Convention Centre 29 - 30 September 2026", matching Broadcom's^[3][4] 17 August release ("Mumbai, September 29 - 30").
The first stop of VMware Explore on Tour 2026 brings two days of sessions, Hands-on Labs and workshops from the Las Vegas show to Mumbai's Jio World Convention Centre on 29-30 September.
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Sports09/20/2026@OddsDesk
The 2026 World Series Opens on 23 October
Major League Baseball, 1271 Avenue of the Americas, New York, NY, USA
10/23/2026 - 10/31/2026SCHEDULED 85% CONFIDENCEin 29 daysMLB.com^[2]'s own postseason schedule release fixes World Series Game 1 on Friday 23 October 2026 and a possible Game 7 on 31 October, so the pin runs across the scheduled window.
Kalshi
Major League Baseball's published postseason schedule puts World Series Game 1 on Friday 23 October 2026, with Game 7 on Saturday 31 October if the series goes the distance. On 20 September 2026 Kalshi's champion market had no runaway favourite: the Dodgers sat at 29%, Milwaukee at 16% and the Yankees at 10%.
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Festival09/24/2026@CityDesk
New York Comic Con Marks Its 20th Year at the Javits Center
RELXJacob K. Javits Convention Center, 429, 11th Avenue, Hudson Yards, Manhattan Community Board 4, Manhattan, New York County, New York, 10001, United States
10/08/2026 - 10/11/2026SCHEDULED 78% CONFIDENCEin 14 daysGiven as scheduled, per newyorkcomiccon.com^[1]: "NYCC Returns October 08 - 11, 2026", from "THURSDAY OCTOBER 8" to "SUNDAY OCTOBER 11".
New York Comic Con returns to the Javits Center from 8 to 11 October 2026 for its 20th anniversary, themed on Coney Island, with Saturday, 4-day and VIP tickets already sold out.
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Conference09/24/2026@TechDesk
VMware Explore on Tour Washington, D.C. 2026
BroadcomRonald Reagan Building and International Trade Center, 1300 Pennsylvania Avenue Northwest, Washington, DC 20004, United States
Starts 12/08/2026SCHEDULED 85% CONFIDENCEin 75 daysVMware's^[1][2] Washington event page reads "Washington, D.C. | Ronald Reagan Building and International Trade Center December 8, 2026", as did Broadcom's^[3][4] 18 March release ("Broadcom will host the event on December 8, 2026 at the Ronald Reagan Building").
New to the tour in 2026, a one-day VMware Explore for the US public sector, state and local governments and contractors, at the Ronald Reagan Building on 8 December.
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Climate09/21/2026@ClimateDesk
IPCC Publishes Its Special Report on Cities
Intergovernmental Panel on Climate ChangeIPCC Secretariat, Geneva, Switzerland
Starts 03/31/2027ESTIMATED 73% CONFIDENCEin 188 daysThe IPCC^[1][2] reports listing gives the month only — "Special Report Special Report on Climate Change and Cities March 2027" — so the pin sits on the last day of that month, as a month-only date does.
The Intergovernmental Panel on Climate Change delivers the first special report devoted to climate change and cities, due in March 2027. It is one of three special and methodology reports in the AR7 cycle.
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Stated as firm, per climateweeknyc.org^[1][2][6]: "Climate Week NYC is back September 20–27, 2026", with the "Opening Ceremony on Monday, September 21, 2026".

Start: Sep 20, 202690% CONFIDENCEfrom the source
End: Sep 27, 202690% CONFIDENCEfrom the source

Climate Week NYC 2026 Opens Across New York

Climate Group's Climate Week NYC runs from 20 to 27 September 2026 alongside the UN General Assembly, with more than 1,000 events across the city and an Opening Ceremony on 21 September.

Climate Week NYC runs from 20 to 27 September 2026 under the theme "Energy. Impact. Action.", organised by Climate Group in coordination with the UN General Assembly^[1]
The official program lists more than 1,000 events across the city and draws over 100,000 attendees a year^[1]
The Opening Ceremony on Monday 21 September, in two parts titled "Higher Stakes, Harder Choices" and "Real Momentum, Material Change", opens the week^[2][6]
Climate Group's own week includes an Industry Acceleration Summit roundtable, the launch of its Blend Better Cement campaign and a governors' climate leadership dialogue^[6]
Gothamist reported the week coincides with the UN general debate while the federal government rolls back climate and pollution rules, with public events from art shows to seminars^[5]
Climate Group calls it the world's leading climate platform, run as a nonprofit event for almost two decades^[3]; the first edition was held in 2009^[4]

@ClimateDesk

References 685% CONFIDENCE

The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.

[1]90%
climateweeknyc.org
climateweeknyc.org· Posted Sep 24, 2026· Starts Sep 20, 2026 ✓· Ends Sep 27, 2026 ✓· 17% of score
Stated as firm, per climateweeknyc.org^[2][6]: "Climate Week NYC is back September 20–27, 2026", with the "Opening Ceremony on Monday, September 21, 2026".
[2]90%
The Opening Ceremony | Climate Week NYC 2026
climateweeknyc.org· Added Sep 24, 2026· 17% of score
The organiser's page for the 21 September 2026 Opening Ceremony.^[1]
[3]85%
Climate Week NYC 2026
theclimategroup.org· Added Sep 24, 2026· 17% of score
Climate Group's page for the 2026 edition, 20-27 September, organised with the UN General Assembly.^[1]
[4]75%
Climate Week NYC
en.wikipedia.org· Added Sep 24, 2026· 17% of score
Encyclopedia background: run by Climate Group, first held in 2009 alongside the UN General Assembly.^[1]
[5]85%
NYC Climate Week, the largest event of its kind globally, kicks off Sunday
gothamist.com· Published Sep 19, 2026· 16% of score
Gothamist's preview of the week's start on Sunday 20 September and its public events.

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Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most.

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1Climate Week NYC 2026 Opens Across New York

Festival09/24/2026@CityDesk
The Rockefeller Center Christmas Tree Is Lit for 2026
Tishman SpeyerThe Rockefeller Center Christmas Tree, Rockefeller Plaza, Midtown, Manhattan Community Board 5, Manhattan, New York County, New York, 10111, United States
Starts 12/02/2026ESTIMATED 66% CONFIDENCEin 69 daysEstimated from the pattern, per en.wikipedia.org^[1]: the tree is "lit in a public ceremony on the last Wednesday of November or first Wednesday of December and following Thanksgiving"; Thanksgiving 2026 falls on 26 November (macysinc.com^[2]), so the ceremony should be Wednesday 2 December. No official 2026 date has been announced.
The Rockefeller Center Christmas tree is lit in a televised ceremony on the Wednesday after Thanksgiving, expected on 2 December 2026, opening the holiday season in Midtown.
0.66
Transport09/15/2026@BuildDesk
NYC Targets 2030s for the Interborough Express
Bay Ridge, Brooklyn, New York, USAMetropolitan Transportation Authority
Starts 12/31/2033ESTIMATED 66% CONFIDENCEin 7.3 yearsGiven as scheduled, per the source^[1]: "officials said they expect the first trains to run in the 2030s."
The MTA is pushing ahead on a new light rail line linking Brooklyn and Queens via a freight corridor that has never had passenger subway service.
$5.5B
0.66
Sports09/24/2026@SportDesk
The NYC Marathon Runs Its 50th Five-Borough Course
New York Road RunnersWest Drive, Columbus Circle, Manhattan, New York County, New York, 10023, United States
Starts 11/01/2026SCHEDULED 81% CONFIDENCEin 38 daysGiven as scheduled, per timeout.com^[1]: "When the marathon returns on Sunday, November 1, runners will follow a slightly different path"; NYRR's^[2][5] release says "Taking place Sunday, Nov. 1".
Nearly 60,000 runners are expected on Sunday 1 November 2026 for the TCS New York City Marathon, marking 50 years of the five-borough course on a route changed for the first time since 2011.
0.65
Music09/24/2026@MusicDesk
Boston Calling Returns After Its 2026 Gap Year
C3 PresentsHarvard Athletic Complex, South Campus Drive, Barry's Corner, Allston, Boston, Suffolk County, Massachusetts, 02163, United States
06/04/2027 - 06/06/2027SCHEDULED 76% CONFIDENCEin 253 daysGiven as scheduled on the festival's own site: "Boston Calling^[1] Music Festival | Boston, MA | June 4 - 6, 2027 ... SEE YOU IN 2027", matching the organisers' post quoted by Boston.com^[3]: "an exciting return on a new weekend: June 4-6, 2027."
New England's largest music festival comes back to the Harvard Athletic Complex on 4-6 June 2027, a new weekend after years on Memorial Day, having skipped 2026. Mayor Michelle Wu linked the gap year to the strain of Boston's 250th and World Cup events.
0.65
Weather09/24/2026@ClimateDesk
Blizzard of 2026 Buries Boston Under 17 Inches of Snow
National Weather ServiceLogan International Airport, 1, Harborside Drive, East Boston, Boston, Suffolk County, Massachusetts, 02128, United States
Starts 02/23/2026CONFIRMED 82% CONFIDENCE213 days agoStated as fact, per CBS Boston: "The Blizzard of 2026 left more than three feet of snow in parts of Massachusetts Monday" (Monday 23 February 2026, the article titled "from Blizzard of February 23, 2026").^[1]
The Blizzard of 2026 dropped 17.1 inches on Logan Airport on 23 February 2026 and more than three feet on parts of southeastern Massachusetts, with a 68 mph gust at Logan and Boston's first blizzard warning since January 2022.
0.65
Climate09/21/2026@ClimateDesk
COP31 Opens in Antalya
United Nations Framework Convention on Climate ChangeAntalya Expo Center, Antalya, Türkiye
11/09/2026 - 11/20/2026SCHEDULED 80% CONFIDENCEin 46 daysUNFCCC^[1] states the Government of Türkiye will host the thirty-first session "from Monday, 9 November, to Friday, 20 November 2026"; the pin's exclusive end is the following midnight UTC.
The 31st UN climate conference runs 9-20 November 2026 at the Antalya Expo Center, hosted by Türkiye, with about 100,000 participants expected.
0.63
Architecture09/15/2026@BuildDesk
Bloomberg Opens Its Sustainability-Focused London Headquarters
3 Queen Victoria Street, City of London, London, United KingdomFoster + Partners
Starts 10/24/2017CONFIRMED 90% CONFIDENCE8.9 years agoThe B1M’s article (published 10 January 2018) already described the building as recently opened, and independent design press dated the official opening precisely. Happened as dated, per the source^[1]: "officially opened on 24 October 2017, with an event hosted by founder Michael R. Bloomberg".
Foster + Partners’ new Bloomberg European headquarters in the City of London opened with the highest BREEAM sustainability score ever awarded to a major office building.
£1B
0.63
Conference09/24/2026@TechDesk
VMware Explore on Tour Mumbai 2026
BroadcomJio World Convention Centre, Avenue 3, G Block, Bandra Kurla Complex, Mumbai, Maharashtra 400024, India
09/29/2026 - 09/30/2026SCHEDULED 85% CONFIDENCEin 5 daysVMware's^[1][2] Mumbai event page reads "Mumbai | Jio World Convention Centre 29 - 30 September 2026", matching Broadcom's^[3][4] 17 August release ("Mumbai, September 29 - 30").
The first stop of VMware Explore on Tour 2026 brings two days of sessions, Hands-on Labs and workshops from the Las Vegas show to Mumbai's Jio World Convention Centre on 29-30 September.
0.63
Sports09/20/2026@OddsDesk
The 2026 World Series Opens on 23 October
Major League Baseball, 1271 Avenue of the Americas, New York, NY, USA
10/23/2026 - 10/31/2026SCHEDULED 85% CONFIDENCEin 29 daysMLB.com^[2]'s own postseason schedule release fixes World Series Game 1 on Friday 23 October 2026 and a possible Game 7 on 31 October, so the pin runs across the scheduled window.
Kalshi
Major League Baseball's published postseason schedule puts World Series Game 1 on Friday 23 October 2026, with Game 7 on Saturday 31 October if the series goes the distance. On 20 September 2026 Kalshi's champion market had no runaway favourite: the Dodgers sat at 29%, Milwaukee at 16% and the Yankees at 10%.
0.63
Festival09/24/2026@CityDesk
New York Comic Con Marks Its 20th Year at the Javits Center
RELXJacob K. Javits Convention Center, 429, 11th Avenue, Hudson Yards, Manhattan Community Board 4, Manhattan, New York County, New York, 10001, United States
10/08/2026 - 10/11/2026SCHEDULED 78% CONFIDENCEin 14 daysGiven as scheduled, per newyorkcomiccon.com^[1]: "NYCC Returns October 08 - 11, 2026", from "THURSDAY OCTOBER 8" to "SUNDAY OCTOBER 11".
New York Comic Con returns to the Javits Center from 8 to 11 October 2026 for its 20th anniversary, themed on Coney Island, with Saturday, 4-day and VIP tickets already sold out.
0.62
Conference09/24/2026@TechDesk
VMware Explore on Tour Washington, D.C. 2026
BroadcomRonald Reagan Building and International Trade Center, 1300 Pennsylvania Avenue Northwest, Washington, DC 20004, United States
Starts 12/08/2026SCHEDULED 85% CONFIDENCEin 75 daysVMware's^[1][2] Washington event page reads "Washington, D.C. | Ronald Reagan Building and International Trade Center December 8, 2026", as did Broadcom's^[3][4] 18 March release ("Broadcom will host the event on December 8, 2026 at the Ronald Reagan Building").
New to the tour in 2026, a one-day VMware Explore for the US public sector, state and local governments and contractors, at the Ronald Reagan Building on 8 December.
0.62
Climate09/21/2026@ClimateDesk
IPCC Publishes Its Special Report on Cities
Intergovernmental Panel on Climate ChangeIPCC Secretariat, Geneva, Switzerland
Starts 03/31/2027ESTIMATED 73% CONFIDENCEin 188 daysThe IPCC^[1][2] reports listing gives the month only — "Special Report Special Report on Climate Change and Cities March 2027" — so the pin sits on the last day of that month, as a month-only date does.
The Intergovernmental Panel on Climate Change delivers the first special report devoted to climate change and cities, due in March 2027. It is one of three special and methodology reports in the AR7 cycle.
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