Almost time you mean?What is best first sign that it's almost sign ?
You'd want to see the trichomes getting cloudy (get a loupe if you don't have one)
Then wait for about ten percent of them to turn amber-then she'll be ready.
(there are varying opinions on this,you're just getting mine)
I don't want to rain on your parade here,but I flowered a sativa for 13 weeks before
she was ready-and,to me anyway,yours looks like it's about 8 weeks away from "ready".
So if you're going to get impatient,wait 6 or 7 weeks before you start.