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 is only 1,400 miles (2,300 kilometers) wide. That is about half the width of the United States and slightly smaller than Earth's moon. It takes Pluto 248 years to make one revolution around the sun. Pluto takes 6 1/2 days to rotate, so one day on Pluto is about 6 1/2 days on Earth. In 2005, this image from NASA's Hubble Space Telescope was used to identify two new moons orbiting Pluto. Pluto is in the center.