23 hours 56 minutes and 4 seconds .
How long is a day on other planets. by Colm Byrne on January 3, 2013. When we think of a day on Earth we measure it in a period of 24 hours, actually it takes 23 hours and 56 minutes and 4 seconds to rotate on it’s axis. So, if we measure a day on each planet compared to Earth it kind of makes it easier. Some of the planets rotate and spin slow and some rotate and spin fast so you can see a big difference as they orbit the Sun in our solar system. Mercury - 58 days and 15 hours. Venus – 243 Earth days. Earth – 23 hours and 56 minute One day is the time it takes a planet to spin around and make one full rotation. Here on Earth that takes 24 hours. How long are days on other planets in our solar system? We can write a paragraph about how long days last on other planets. On Mercury a day lasts 1,408 hours, and on Venus it lasts 5,832 hours. On Earth and Mars it’s very similar. Earth takes 24 hours to complete one spin, and Mars takes 25 hours. The gas giants rotate really fast. Option 1: A Paragraph. We can write a paragraph about how long days last on other planets. On Mercury a day lasts 1,408 hours, and on Venus it lasts 5,832 hours. On Earth and Mars it’s very similar. Earth takes 24 hours to complete one spin, and Mars takes 25 hours. The gas giants rotate really fast Report Abuse. A day for a planet is defined as the period of rotation: how long it takes the planet to revolve around it's own axis (not around the sun, that's a year). Mars days and Earth days are similar, with Earth having a 24 hour day & Mars having a 24.6 hour day, about 36 minutes longer than Earths. Best Answer: Mercury is the planet closest to the Sun in our Solar System. It has a long daytime (which lasts 58.65 Earth days or almost an entire Mercurian year, which is 88 days long) Venus rotates VERY slowly. Each day on Venus takes 243 Earth days. A year on Venus takes 224.7 Earth day Compared to Earth, Mercury has a very long day. A day on Mercury takes 58 days and 15 hours in Earth days. A day on Mercury is only a little shorter than a year on the planet. Venus is the slowest moving planet. Some astronomers believe that we will never know how long a day on Saturn is. A day on Uranus only takes 17 hours 14 minutes and 24 seconds. Since the planet has such an extreme axial tilt (97.8°), it actually rotates on its side. A day on Neptune lasts 16 hours 6 minutes and 36 seconds in Earth time. It takes Earth 23.439 hours to complete a rotation on its axis, and roughly 365.26 days to complete an orbit around the sun. Earth's axis of rotation is tilted in relation to the ecliptic plane, an imaginary surface through Earth's orbit around the sun.  A day on Venus is 243 Earth days. Venus’ day is actually longer than its year. It only takes 224.7 Earth days for the planet to orbit the Sun. We measure a day on Earth as a period of 24 hours, but it actually takes the planet 23 hours 56 minutes and 4 seconds to rotate on its axis. Some astronomers believe that we will never know how long a day on Saturn is. A day on Uranus only takes 17 hours 14 minutes and 24 seconds. Since the planet has such an extreme axial tilt (97.8°), it actually rotates on its side. A day on Neptune lasts 16 hours 6 minutes and 36 seconds in Earth time.
http://www.planetsforkids.org/news/how-long-is-a-day-on-other-planets/ http://www.spaceplace.nasa.gov/days/en/ http://www.spaceplace.nasa.gov/days/en/ https://answers.yahoo.com/question/index?qid=20080121001933AAFMKzU http://www.universetoday.com/37481/days-of-the-planets/ http://www.space.com/54-earth-history-composition-and-atmosphere.html http://www.universetoday.com/37481/days-of-the-planets/
how long is a day on earth compared to space