My DH has been retired for about 2 years. He says that every day feels like a Saturday.
He had been a long-distance truck driver for 30+ years, starting his day at 3am just about everyday during that time.
He still wakes up at about that time. He starts the coffee maker, lets our cats outside, goes back to bed, plays on his Android device, listens to The Weather Channel, and leisurely enjoys his coffee. I get up about 5:30am, get dressed, and leave for work around 6am. DH stays in bed until 9, gets up and dressed, and eats his Cheerios in the living room. He takes a morning nap, watches TV, takes an afternoon nap, and when I get home from work about 1am, he goes outside to work in the barn or on the landscaping.
On Wednesdays and/or Thursdays, he goes to his parents' house and plays cribbage with his Dad and visits with his Mom. Sometimes other mornings, he goes to Wal-Mart, sometimes he goes fishing.