President Barack Obama had the lowest number of vacations for a modern president. 328 days which is less of his predecessor George W. Bush. All other recent two-term presidents could hover anywhere from 150-500 but between 300-400 was common. But even though records are not reliable from the 18th and 19th century, the worst offenders seemed to be much earlier presidents. The worst of the bunch seemed to be John Adams and James Madison who literally took months off in a row. Though for modern presidents, there isn’t much of a day-off as they still have to be on-call for anything important that comes up and much of the president’s staff comes along for the trip.