Worth a try I guess but I wouldn't expect anyone in Apple online chat to know exactly when it will go online. Unless it goes something like this:
Interior: Apple HQ
Fred is working on the live chat computer. A question pops up asking when the keynote will come online. He turns to the guy on the computer next to him and says...
"Oi, Harry. When you gonna finish that thing"
Interior: Apple HQ
Fred is working on the live chat computer. A question pops up asking when the keynote will come online. He turns to the guy on the computer next to him and says...
"Oi, Harry. When you gonna finish that thing"