# How many minutes in a day and how many hours in a day?

60 Minutes in a hour

24 hours in a day

So: 1440 minutes in a day.

### How many hours in longest day?

There are 23 hours and 56 minutes in the longest day - exactly as there are in the shortest day. How "long" or "short" a day is refers to how long there is sunlight in the sky. Many more hours a day in summer, many less hours a day in winter. But the actual length of the day on earth is always 23 hours and 56 minutes.

### How many Earth hours is in one Mars day?

The simple answer is "just over 24 hours". More details: A day on Mars is 24 hours, 39 minutes and 35 seconds That's the "solar day". The rotation period or "sidereal day" is a couple of minutes less. For comparison, on Earth the solar day is 24 hours and the sidereal day is about 23 hours and 56 minutes.

### Is a day really 24 hours long?

A day on Earth is 24 hours, a day on Mars is 24 hours 39 minutes and 35 seconds, a day on Mercury is 1,407 hours, a day on Venus is 5,832 hours, a day on Jupiter is 9 hours and 50 minutes, a day on Saturn is 10 hours and 47 minutes, a day on Uranus is 16 hours and 7 minutes, a day on Neptune is 16 hours, and a day on Pluto…