There is also a unique 12/1 light schedule that some growers swear by ( for veg stage only ) . It is a very different approach to the norm everybody uses.
12 hours on , 5 1/2 hours off , 1 hour on , 5 1/2 off ( every 24 hours )
This is an experiment I tried on a regular grow with 2 plants ( not auto ) this was designed for the veg period only . It will require a modified timer setup. Timers that have multiple setting tabs will work. ( the kind that you push up or down ). This will allow setting anytime during the day you want. It DOES drop your power bill !
For Flowering : 11/13 ( which I am using currently ) as the flowering continues into later stages you keep changing ( around week 4/5 flower ) dark period by an hour longer each week. This simulates a more natural progression of what nature does as the nights get longer. Continue up to harvest. ( up to 15 hour dark at end ).
Try it ,
( this will probably get some flaming posts , but try it yourself and run the course )
Don't hate LOL