Grand Daddy Purple auto. Eight weeks from germination or eight weeks from flower start?
8 to 10 weeks from the start of flowering. Cited 8 weeks assumes ideal conditions which hobby growers rarely achieve.
Here’s one that is seven weeks from flower start. Outdoor grow. Trichomes mostly cloudy, no amber. Harvest or wait?
Like @MidwestGuy said about weeks. I’ve had autos go 12-13 weeks.