Microsoft E3 2019  June 9

Microsoft will host its annual E3 press conference on June 9 at 1:00 p.m. PT / 4:00 p.m. ET, the company announced. It will be live streamed on YouTube, Twitch, Mixer, Twitter, and Facebook.

On June 10, Microsoft will have "Inside Xbox: Live at E3," which will highlight "restrictive declarations, amusement demos, interviews, giveaways, and then some." 
E3 2019 will keep running from June 11 to 13 at the Los Angeles Conference hall.