ORIGINAL: Rasputitsa
During the early stages of 'Coral Sea' the two CV forces got with 70 miles of each other, but did not sight one another.
What happens on one day in a 2 week turn is not representative, but it's not 100% sighting either.
The Japanese did not sight the US CVs because they refused to launch search aircraft from the CV. Talk about a massive mistake. Had they launched search aircraft, the Americans would have been found and probably both CVs destroyed.
That occurred on the 6th. On the 8th, both groups were aware of the position of the other and launched simultaneous attacks. Thus, in a 2 week turn, yes, the CVs would know each other's position and launched strikes.
I'll leave a link to a video of the Battle of Coral Sea
which explains in detail the search efforts of both sides in the battle. Essentially, the Americans enter into the zone of combat on the 2nd and 6 days later the 2 CV groups clash... once again inside the 2 week turn window.
The Battle of the Coral Sea 1942: The First Aircraft Carrier Battle in History
https://www.youtube.com/watch?v=NB5hH3ksvKE&t=5s