Hindu Kush @ 6wks Flowering.....How much longer?

I know this thread is old as hell, but thanks....friend was given a seed that was said to be Hindu Kush from bag seed, plant looks almost the same, his seems to have a little more Sativa in it, but same deal with all the leaves turning yellow and falling off at about 7 weeks now, sad it got pollinated, but not bad, who knows what those will produce! thanks again for this thread helped a lot! I can get a feel on when to tell him to cut her