If you have ANY suspected males or hermies in your garden, you really should be there to check on them every day, since the speed at which they go from initial appearance to DANGER! DANGER! depends on a few things, including temps and plant vigor, so it's impossible to say EXACTLY when your danger window begins. Can you isolate them from your confirmed females while you are out of town? Are we talking about the plant you posted in the other thread? If it's the plant I'm thinking of, I see some of the clusters definitely showing the beginning of flop, and you should expect open male flowers within a couple days!