How long is a day and night on neptune? neptunes day is exactly 90 hours long Actually, it's 16.11 Earth hours long.
Depends on your latitude.
21
The rotation period of Neptune is 16.1 earth hours.
Depends entirely on what you are after, muscle endurance? or muscle strength. If you want muscle endurance i recomend a longer workout, about 2-4 hours 3 times a week. How you do this is you take a...
10 hours