Mercury - 175.940 Days. Venus - -116.75 Days. Earth - 24 Hrs.
Mars - 24 Hrs. , 39 Minutes, 35.24 Seconds.
Jupiter - 9 Hrs., 55 Minutes, 33 Seconds.
Saturn - 10 Hrs., 32 Minutes, 36 Seconds.
Uranus - -17 Hrs., 14.4 Minutes.
Neptune - 16 Hrs., 6.6 Minutes.
(Pluto, - 6 Days, 9 Hours, 17.0 Minutes.)
Mercury, has 24 hours in a day, the same as the earth and all the other planets in the Universe.
If you mean "how many hours are IN one day", then there are 24 hours in a day.
24 hours are in one day...:)
There are 24 hours in a day.
There is 24 hours in 1 day!!
On Earth there are 24 hours in the day. There are 24hrs in a day. On different planets, it may vary.
Mercury, has 24 hours in a day, the same as the earth and all the other planets in the Universe.
On Earth there are 24 hours in the day. There are 24hrs in a day. On different planets, it may vary.
24 hours
Mercury.
Of the four inner planets (Mercury, Venus, Earth, and Mars), Earth has the shortest day at 23 hours and 56 minutes sidereal rotation period. That's the "sidereal day". The day that lasts exactly 24 hours is called the "solar day". For both "days", Earth has the shortest day.
The outer planets have longer rotation periods than the inner planets. For example, a day on Jupiter, an outer planet, is about 10 hours long, while a day on Earth, an inner planet, is about 24 hours long.
The planets with the shortest days are Jupiter (9 hours and 55 minutes) and Saturn (10 hours and 30 minutes.)
23 Hours 57 Minutes and 14 Seconds
One day on Haumea, a dwarf planet in our solar system, lasts about 4 hours. Haumea rotates on its axis very quickly compared to other planets and dwarf planets in our solar system.
If you mean "how many hours are IN one day", then there are 24 hours in a day.
on Earth it's 24 but I'm not sure about other planets