seed run

I have crossed 5 white widow autos with a male super silver haze auto.
I have a bit of a problem, the heads are very swollen with seed's, the husk have all spilt but the seeds are still showing green.
My question is how long would does it normally take to start browing the seeds in the heads?
This plants are under a 600watt hps lamps.
have stopped watering aswell for 7 days ago.

anyone?????????????

If you are asking how long it will take to mature the seeds - wait until they fall - but don't sweat it - many will be viable even if green

they are a pale light green at this stage, being autos aswell they are now on day 88 which white widow autos are normally ready on day 65-70, so guess being a couple of weeks willl be normal then for the seeds to start being ripe