A day is a unit of time. In common usage, it is either an interval equal to 24 hours or daytime, ... The unit of measurement "day", redefined in 1960 as 86 400 SI seconds and symbolized d, ... The life patterns of humans and many other species are related to Earth's solar day and the day-night cycle (see circadian rhythms).
Seconds in a day calculation. One day has 24 ... has 60 seconds, so: 1 day = (24 hours/day) × (60 minutes/hour) × (60 seconds/minute) = 86400 seconds/day ...
A day typically consists of 23 hours 56 minutes and 4.1 seconds to be exact. So if we are exact then a day would consist of 23x60x60 + 56x60 + 4.1 seconds ...
May 28, 2017 ... Well there are 60 seconds in a minute and 60 minutes in an hour and 24 hours in a day. Thus: 60⋅60⋅24=86,400 seconds in a day.
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There are 86400 seconds in a day. This calculation is based on the conventional definition of the length of a day; for convenience, a day is defined as 24 hours.