dude, depending on your phenotype. don't think on time, but on the aspect of the plant and trichomes. Some plants will be ready in 8 some will be ready in 16. Your plant looks ready to flush! good luck and good harvest!
You can't see the trichomes on that picture. I flush when either all are definitely cloudy but sometimes it's easier to flush when you start seeing Ambers. 👍🌱