What order would the planets appear in when listed by length of day from shortest to longest?
Jupiter, Saturn, Neptune, Uranus, Earth, Mars, Mercury and Venus (in that order).
The details are Jupiter (10 hrs.), Saturn (11 hrs.), Neptune (16 hrs.), Uranus (17 hrs.), Earth (24 hrs.), Mars (25 hrs.), Mercury (1408 hrs.) and Venus (5832 hrs.). Please refer to NASA website for this.