(All of the following is EST)
In 2023
June 30: Free agent market negotiations officially open (6:00pm local time)
July 3-5: California Classic Summer League (Sacramento, CA)
July 3, July 5-6: Salt Lake City Summer League (Salt Lake City, Utah)
July 6: Free agent signing officially opens (12:01pm local time)
July 7-17: Las Vegas Summer League (Las Vegas, Nevada)
July 7-9: NBA Con Carnival (Las Vegas, Nevada)
August 7: Men's Basketball Warm-up Game USA vs Puerto Rico (Las Vegas, Nevada)
August 11-12: Naismith Basketball Hall of Fame (Springfield, MA)
August 12: Men's Basketball Warm-up USA vs Slovenia (Malaga, Spain)
August 13: Men's Basketball Warm-up Game USA vs Spain (Malaga, Spain)
August 18: Men's Basketball Warm-up USA vs Greece (Abu Dhabi, UAE)
August 20: Men's Basketball Warm-up Game USA vs Germany (Abu Dhabi, UAE)
August 25 - September 10: FIBA World Cup 2023 (hosts Philippines, Japan and Indonesia)
26 September: The earliest day for players participating in the Abu Dhabi pre-season to report to the team (no earlier than 11 a.m. local time)
September 27: Open hours for all teams participating in preseason games outside of North America
October 2: The earliest day all other veteran players report to the team (no earlier than 11 a.m. local time)
October 3: NBA training camp opens
October 5: NBA preseason begins
October 5 & 7: NBA Abu Dhabi, Mavericks vs. Timberwolves (Abu Dhabi, UAE)
October 8: NBA Canada Series, Raptors vs. Kings (Vancouver, Canada)
10 October: Pre-season, Mavericks v Real Madrid (Madrid, Spain)
October 12: NBA Canada Series, Thunder vs. Pistons (Montreal, Canada)
October 20: NBA preseason ends
October 23: NBA opener confirmed (5 p.m. local time)
October 24: The 23-24 regular season begins
October 28: NBA G League Draft begins
Oct. 30-Nov. 9: NBA G League Training Camp
November 3: The NBA Midseason Tournament begins
Nov. 9: NBA G League opener confirmed (5 p.m. local time)
November 9: NBA Mexico, Hawks vs Magic (Mexico City)
Nov. 10: NBA G League season begins
December 7: NBA Midseason Tournament Semifinals (Las Vegas, Nevada)
December 9: NBA Midseason Championship Game (Las Vegas, Nevada)
Dec. 19-22: NBA G League Winter Show and Show Cup Championship Game
Dec. 27: NBA G League 34 regular season games begin
In 2024
January 5: Teams are allowed to sign short contracts with players for 10 days
10 January: All players' contracts are converted to guaranteed contracts
January 11: NBA Paris Game, Nets vs. Cavaliers (Paris, France)
January 23-27: NBA Archrivals Week
Feb. 8: NBA Trading Deadline (3 p.m. local time)
Feb. 16-18: 2024 All-Star Weekend (Indianapolis, Indiana)
Feb. 16-21: NBA All-Star holiday
March 1: Playoff qualifying cutoff deadline
March 30: NBA G League regular season ends
April 2: NBA G League playoff opener
April 14: NBA regular season ends
April 15: 2024 playoff roster deadline (3 p.m. local time)
April 16-19: Playoff qualifying play-offs
April 20: 2024 playoff opener
April 28: Draft registration deadline (11:59 local time)
May 6-7: Division semifinals (may be brought forward to May 4-5)
May 12: 2024 Draft Draw Ceremony
May 13-19: NBA Joint Tryout (Chicago, IL)
May 21-22: Division finals start (may be brought forward to May 19-20)
June 6: 2024 Grand Final Opener
June 9: 2nd Finals 2024
June 12: 2024 Grand Final Game 3
June 14: Game 4 of the 2024 Grand Finals
June 17: Draft entry deadline withdrawn (5 p.m. local time)
June 17: 2024 Grand Final Game 5 (if necessary)
June 20: 2024 Grand Final Game 6 (if necessary)
June 23: 2024 Grand Final Game 7 (if necessary)
June 27: 2024 NBA Draft