MOAS suggests that at 9 00 few boys around to go off.
Time has rolled on but when I used to visit regular, the afternoon trade from off the beach used to be active then the after dinner trade, with a gap until the older men your age arrived usually after 10.
A number of parties seek to evolve and if you were in the know , invites were open. Not my scene but it would not surprise to see bar boys arrive at 10 for work if nothing happens