Hard to say from these pictures but from a look at your diary it seems like they have about two weeks maybe one as rough guess.
Your best bet is to check the trichomes with a loupe or a magnifying glass, harvest is usually done when about 15-20% of the trichomes turn amber in color.
Hope this helps! Beautiful plant you got! Good luck and happy harvest :)
Pics are hard to see. I would check trichomes and harvest when all trichomes are milky white. Or harvest when most of the hairs has curled into bud and change color.