Time change is affecting my chickens

[dae006]

Ever since we turned the clocks back an hour for standard time, 3 days ago, I've either had some chickens miss the coop door closing and they get locked out of the coop, or like tonight, 3 days after the time change, the whole flock got locked out. I have had it set to close 20 minutes after sunset since they have been in the coop this spring. Sunset isn't affected by the time change.
But, the one thing I did change is when I let them out of the coop in the morning. During DST, the door opened at 8:00am and after switching to standard time I programmed it to open at 8:00am (which to them is/was 9:00am prior to the time change), one less hour a day. I assumed they went into the coop based on the sunset, but do they think they should be outside an extra hour?

Any thoughts?

 

[CherishedFowlGuardian]

My chickens just act like there was no time change so really I don’t think so so I used to put my up at 6:50 before the time change and now I put them up at 5:50.
So really the chickens didn’t have a time change on me

 

[BigBlueHen53]

Chickens can't tell time, they go by the sun. Let them out in the morning a little after daylight.

 

[Not-so Slick Chicken]

It sounds like either the door is closing before it gets dark, or something else changed to cause them to not go in.

Do they have supplemental light, and if so is that turning off early?
Could there be a nuisance disturbing them from going in the coop?

Our birds put themselves up before it gets dark (my flock, and my mom's flocks over the years)