Managing a grocery store on Sundays, I really don't notice the time change anymore.
My personal schedule for a long time has been :"Day light= time to get up, go to work on the house
Late afternoon= Naptime , supper, bath
Dark= Turn on the doorbell, wait for customers
Not a very precise "Clock" by common standards, but then time has always been a very fluid thing for me working long, late hours , one tends to not know or maybe not need or want to know what time it really is?