From what I've read, barky wouldn't show up before nine and was gone by four, that was, when he wasn't interrupting his golf day to work.
I've heard the same about Obama, and in retrospect, it's unsurprising at all that he had such a lackadaisical attitude toward the job.
And it's not that I begrudge any President the opportunity to have some leisure time because I get it that it's a 24/7 job. Whether he wants to or not, Donald Trump will clock in at noon on January 20 and he will not clock out until 35,064 hours later, and there's a pretty good likelihood that he'll immediately clock in for another 35,064-hour day on January 20, 2020. So I don't have any problem with someone taking some time off or occasionally sleeping late when they're otherwise working 70K hours in a row. But when you look back at other Presidents, it sure seems like Obama had a flippant attitude toward the whole thing literally from day one.
Remember way back when, immediately after he first took office? He came into the Oval, late, took off his coat and cranked up the heat, at the very time that he was telling the American people that they have to conserve energy and that he was going to jack up the cost of heating their homes. Looking back, that was a rather prophetic "let them eat cake" moment.
I'm willing to bet Trump will put in 18 hour days starting at 0500 or 0600.
Someone did a pretty interesting look at the life of the President a couple of years ago. History Channel or one of those. They pointed out that the President normally gets awakened by a phone call at I think 0500 or maybe 0530 every morning from Langley, or maybe it's Fort Meade, with an update on threats facing the nation. This is before the PDB is presented in written form later that morning. I can envision Obama sort of muttering into the phone before hanging it up and rolling back over for another couple of hours. Compare and contrast that with Reagan and especially W., who was "notoriously punctual," well-known around DC as being an early-riser, early into the office, and kept a meticulous schedule. Reagan was especially known for his office decorum: you
did not go into the White House for anything unless you were wearing a coat and tie or the proper female equivalent. Obama, though, wandered around the West Wing in jeans and a golf shirt many days.
I would certainly like to hope that, if nothing else, Trump will return that sense of punctuality, efficiency, and decorum to the West Wing. I'd say it's pretty sorely needed right about now.