Convert 1 Day to Seconds
How long is 1 day? What is 1 day in seconds? 1 d to s conversion.
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1 Day =
86,400 Seconds
exact result
Decimal places
Result in Plain English
1 day is equal to exactly 86.4 thousand seconds.
In Scientific Notation
1 day
= 1 x 100 days
= 8.64 x 104 seconds
Days
A day is the approximate time it takes for the Earth to complete one rotation. It is defined as exactly 86,400 seconds.
Seconds
A second is the base unit of time. Originally, it was based on the length of the day, but it has since been standardized based on the radiation wavelength of caesium-133.Common abbreviations: s, sec