Clones flowering under 24hrs light

I have a mother plant that is a clone it's self,it was getting to big to keep in my grow space so i put her out side then about 3 week later took 10 clones of her,but she had took flowering hormoans because the light here in the uk has been very dull an pissing with rain,i never knew this in till the mother an clones started to flower.i took 2 clones 3 week early an there fine no signs of flowering,so how long will it take the clones to switch back there on 24/7

a few weeks at most,but some strains longer,but i just took some clones 5 weeks in flower and its been 2 weeks since they rooted and most of them have gone back to veg except 2 strains.