Despite their similar and sometimes confusing acronyms and their overall purpose of allowing tax-free reimbursement of various types of medical expenses, health savings accounts (HSAs) and health reimbursement arrangements (HRAs) are quite different when you get down to the details.
A full rotation of Pluto takes 6 Earth days, 9 hours, and some minutes; so the day part should be about half that amount (3 days and 5 hours), at least on average.
Pluto, which is no longer considered an official planet, is about 48 AU from the Earth. Because the orbits of the planets are elliptical, the distances change over time. Pluto's orbit is so eccentric that it can be closer to Earth than Neptune. An astronomical unit is 149,597,870,700 meters. It represents the distance from the Earth to the Sun.