How many seconds are in a day?

Answer 1

There are 86,400 seconds in one 24-hour day.
86,400 because there are 24 hours in one day and each hour has 60 minutes and each minute has 60 seconds so 24 hours times 60 minutes equals 1440 times 60 seconds equals 86,400.

However, a sidereal day (Earth's rotational period) is slightly shorter. The sidereal day is 86164.0916 seconds long.

Answer 2

There are 60 seconds in minute and 60 minutes in hour, So multiply 60 with 60 the answer will be 3600, so there are 3600 second in hour.

Now in day there are 24 hours, so multiply 3600 by 24 the answer will be 86400.

So there are 86400 seconds in day.

Answer 3

There are sixty seconds in a minute, sixty minutes in an hour, and twenty-four hours in a day. At 60x60x24, that's 86,400 seconds in a day.