Changing Light Schedule

Hello all! I have a question regarding light schedule. I am currently 18/6 and lights off are between 3pm - 9pm. I was wondering if I can gradually take it back an hour or two to lights off at 2pm - 8pm then shortly after to 1pm - 7pm. Its getting a little hotter than anticipated during the day. Will this impact my 3 week old babies in any way? I can also bring the time back by 30 min intervals if that causes less of an issue.

Anyone chime in on this? Appreciate it!

It won't harm your girls. I've had to do that a couple times in the past with no negative effects

Thank you for your feedback! I'll slowly transition 3 hours back with 1 hour difference everyday.

Since you're in veg it doesn't really matter. I would just switch straight to 1pm-7pm.

yeah id just switch it, wont harm anything in veg.
I had a little screw up with switching my timer out during stretch and forgot to set the time on it. They got 6 hours of extra light before I realized it and I just set the time back and let them go along with their schedule.

Thanks for the prompt response guys!