Microsoft has dated its E3 2016 press conference. It will be taking place on June 13th at 9:30 AM PST/4:30 PM GMT. The event will likely be live-streamed, as past events have, and run for an hour and a half to two hours at most.
E3 2016 is currently scheduled to take place on June 13th to 16th at the Los Angeles Convention Center. Games like Halo Wars 2, Horizon: Zero Dawn, The Last Guardian, Final Fantasy 7 Remake, ReCore, Titanfall 2 and many more are either confirmed or expected to make an appearance.
Source: Rheena.com