Convert 86400 seconds to days

Explanation

Let's convert 86400 seconds to days, or s to d as one could put it.

First, we need to calculate the conversion factor using the units respective values. We find 0.00001157.

Then we multiply this conversion factor by the number of seconds. In this case 86400.

Therefore, 86400 seconds is equal to 1 day.

Formula

1 s≈0.00001157 d

86400 s≈86400 × 0.00001157 d

86400 s=1 d

secondss

dimension	time
system	International system of units (SI)
symbol	s

The second (s) is the base unit of time in the International System of Units.

Definition of the second

It is defined by taking the fixed numerical value of the caesium frequency ∆ν_Cs, the unperturbed ground-state hyperfine transition frequency of the caesium-133 atom, to be 9 192 631 770 when expressed in the unit Hz, which is equal to s^–1.

From the BIPM: Unit of time

Equivalences

One second is equivalent to:

Some Facts

As of 2021, the world record for the 100 meters dash is held by the Jamaican Usain Bolt with a time of 9.58 seconds.

SI time units

picosecond	ps	0.000 000 000 001
nanosecond	ns	0.000 000 001
microsecond	µs	0.000 001
millisecond	ms	0.001
second	s	1
kilosecond	ks	1000
megasecond	Ms	1 000 000
gigasecond	Gs	1 000 000 000
terasecond	Ts	1 000 000 000 000

The International System of Units

The International System of Units or SI (from the French Système international (d'unité)), also called metric system in the U.S., is a coherent system of units that was published 1960. It is official in nearly every country.

The General Conference on Weights and Measures (Conférence générale des poids et mesures) is tasked with overseeing the SI.

daysd

dimension	time
symbol	d

The day (d) is a common unit of measurement of time. It is accepted for use with the SI.

One day can be divided into 24 hours of 3600 seconds each and 365 days make a year.

Definition of the day

One day is equal to 86400 seconds.

The International System of Units 9^th edition p. 145

Equivalences

One day is equivalent to:

Some Facts

The longest period of sleep deprivation scientifically documented is 11 days. That is not something you want to try though, like other animals, humans need regular sleep for their brain to function correctly. The symptoms of a lack of sleep can be light at first. They include moodiness, irritability and a shorter attention span. But after days of sleep deprivation the patient can suffer from hallucinations, paranoia and even die. So turn off netflix, it's not worth it.

Common time units

second	s
minute	min	60 seconds
hour	h	60 minutes
day	d	24 hours
week	w	7 days
year	y	365 days

A sexagesimal system

Hours, minutes and seconds are an example of a sexagesimal or base 60 numeral system.

The number 60 is a superior highly composite number, meaning it has a lot of factors. This allows for some simplification when dividing.

Since there are 60 minutes in an hour, the hour can be divided evenly in eleven different ways (with sections of 30, 20, 15, 12, 10, 6, 5, 4, 3, 2 and of course 1 minute).

Coming up with and remembering 60 different symbols would be cumbersome, that is why we write the sexagesimal digit using the decimal system.