Can any one tell me about how long is left till harvest? i thought there was at least 3 week left but the buds hairs are going brown id say its about 40% of the plant. Ive got some pics there only small because my mate had to convert a wardrobe to put them in and theres 3 in there lol so not expecting much

A couple weeks for sure, Try buying a microscope that magnifies about 60x and look at the crystals that you can see with your eye. They look almost like milky white to amber colored mushrooms when its done.
Id say flush for two weeks though for a smooth clean taste. looking good though.