i have heard many people use futures to judge how the market will react the next day..

http://www.bloomberg.com/markets/stocks/futures.html

for example if i want to know how tomorrow’s market will react, from what time till what time’s (EST) should i look out for?
errr to the 2nd reply i m a technical trader isn’t that why i m trying to learn about the fundamentals a step at a time starting from futures? >_>