Impatient as I am as a beginner, I would like to know how long it will take until harvest, my own estimate is 5 weeks. What do you think rather longer or shorter. Is day 27 with 12/12 lighting.
Your probably about right. 5 maybe 6 weeks left. Looks like you have quite dark leaves, keep an eye on your nitrogen levels, you don't want them to high from now.