CC, as far as anyone else recognising Lois, no, only Perry, but she was seen by many.
The expose of Clark/Superman was actually done on live television and Lois was there. Also, there was a picture on the front page of the paper. It was never mentioned if Lois' name was ever revealed.
Also, we know that Clark had to leave, or miss out on, the dinner with Lana and her parents that night after Lois and Clark first meet. Then there is the shopping and the costume, and the rescues. There is then, the next day which sets up the 'showdown' between Tempus and the new Superman. After being exposed there is the press conference held outside the Daily Planet to 'introduce' Superman/Clark to the world. I can't imagine that happened the same day as the TV studio disaster. So it seems that Lois was there at least three days and two nights, but then we know that she came back to her world only seconds after she left.
Tank (who knows no one was really asking all the questions he decided to answer, but what the heck)
