>>3429724exposure times varies and increases wildly depending on what you're trying to get and where you set up.
on the same very sunny day I got a good exposure of my college open air garden in around 30 seconds, but move a few feet from the spot, set up in the shade below the trees to get the building and cafeteria tables, still midday sunshine but that shade made me need a 2 minute 15 second exposure to get it right. all with photo paper.
I could use the college darkroom so I was able to make exposure time tests on small strips of paper. over time you git gud at estimating the time needed for proper exposure under particular conditions, just don't forget to take notes.
only scan I have at the moment, the negative for pic related was 1 minute 25 secs because it was midday slightly overcast. paper is all smudged and uneven because I was using scraps left over by students. they don't give a shit and handle the paper with their dirty hands full of chemicals.
