At least 2 weeks or more ... Colors are strain dependant sometimes .... You have a lot of white pistils and only around week 7 ... Keep pushing along ... Pistils will change and recede as bud matures. Don't get so anxious to harvest ... It's like picking fruit let it ripen.
Some strains DO NOT Amber up either. Take breeder estimates with a grain of salt , their finish times are listed under OPTIMAL CONDITIONS ( temp controlled , sealed grows , environment control to study strain performance ) , not like regular joes like you and me.
I NEVER go by breeder times ... It ALWAYS goes longer. Especially Sativas. Even autos can run longer than advertised. They look very good and they will get even better.