The graphic below shows the times that the press conferences in L.A. will kick off over the next 24 hours.
They're displayed in CET, that means you'll be able to catch them an hour earlier in the UK. So that's Microsoft at 17:30pm, EA at 20:00pm, Ubisoft are on stage at 11:00pm and, if you can keep your eyes open, Sony's show kicks off at 2:00am.
After some much needed sleeps, we'll be ready to go again with Nintendo's show at 17:00pm on Tuesday.
So that's it, the main headlines will spill from those conferences, and we'll be typing furiously in order to bring you the biggest headlines from the event. So, grab some energy drinks on your way home from work, get comfortable and prepare for an onslaught of news, trailers and screens from this year's E3.