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.
Itâs estimated that three billion years ago, a day zipped by in about 13 hours, while now one full rotation of the Earth on its axis takes 23 hours, 56 minutes and 4.091 seconds. Old theories held that the effect was gradual, with the length of an Earth day increasing just .002 seconds per century.