If u don’t wont to make some experiment or strange stuff, i like give 18/6 for save on bill and give the plant some rest and the right ammount of light, don’t worry if u have started with 24/0 , change on 18/6 and it will be fine, maybe you can slowly go to a 12/12 cycle for the end of the flowering to save on bill but this i don’t know if it will riduce your yeald, hope to be useful and comprensive ✌️🏽