If you find out, sell the info!
Our 2 dogs were used to getting up at 4:30 with my husband on days that he works and sleeping until at least 7:00 when he doesn't; if he was at work all night, they wouldn't get me up until closer to 8:00. Now we have a third dog that isn't really ours, she belongs to my husband's 94 year old grandmother, but she has been here since February this time, this is her third "stay" with us in the last year and she isn't going back. We'll call her a foster to adopt dog. Anyway, she is 2 years old and her routine at grandma's was to be up by 5:30 every morning. She has not adapted to our dogs' routine and she is the only one still in a crate at night at home. She puts herself to be every evening around 8:30 or so, she just goes in her crate and goes to sleep with the door open. She goes outside around 10:30 or so, whenever our dogs go out for the last time of the night and she goes right back to her crate on her own. She starts her little cries around 6:00 and then she just keeps getting louder, but she doesn't bark, we call it her talking. She does it when she needs to go out too. After about 15 minutes of that, our dogs come running upstairs barking as if to tell us that she is crying, like we need the help.
We won't even talk about time change. They don't get that either.