Seems like a different issue. Nothing about the start time says anything about how much sleep you get.
On the other hand people sleep better in the dark so if your start time implies you're going to bed when it's light out it could cause problems. Unless you use a prosthetic night (curtains).
>> On the other hand people sleep better in the dark
I don't understand how people manage this. I fall asleep in less than 5 minutes if I lie down while the Sun is up in the morning, and stay solidly asleep until an appropriate number of hours have passed. Going to bed in the dark, I can toss and turn for anywhere from 30-120 minutes before finally dozing off.
Night owlism is real, and it's seriously debilitating to be required to conform to working a 9-5/10-6 job. It's Friday night, so I get to live my weekend hours. It's 2:30am now, and I'll be up another few hours. Whenever I am on vacation, or between jobs, I instantly swap to a nocturnal schedule. It is extremely painful to have to work during the day, to the point where I burn out after 12-18 months at a job. For the first time in a decade, I've almost made it 2 years at a single employer. That time is running out. I need a reversion back to my normal hours for a while. :(
On the other hand people sleep better in the dark so if your start time implies you're going to bed when it's light out it could cause problems. Unless you use a prosthetic night (curtains).