It seems like EA is the first of many to have their E3 conferences detailed; at least, when it comes to its date and time. The conference from the publisher is scheduled for June 10th at 1 p.m. Pacific/4 p.m. Eastern/9 p.m. UK Time. What they will be discussing wasn’t mentioned, of course, but you can probably bet on seeing Battlefield 4 among other well known EA properties.
Meanwhile, Ubisoft’s conference has also been confirmed for the same date, although a specific time has yet to be mentioned.
{Source: CVG}