You are very lucky to have a strong circadian rhythm that doesn't require light in the morning then. Not all of us work that way. If there is no light in the mo

You are very lucky to have a strong circadian rhythm that doesn't require light in the morning then. Not all of us work that way. If there is no light in the morning I find it very hard to get up and function. Where I live, if we adopted permanent summer time the sun wouldn't rise until 9:45 in the dead of winter. I couldn't handle that many hours of complete darkness at the start of the day.