Convert 72 hours to days

Explanation

Let's convert 72 hours to days, or h to d as one could put it.

First, we need to calculate the conversion factor using the units respective values. We find 0.04167.

Then we multiply this conversion factor by the number of hours. In this case 72.

Therefore, 72 hours is equal to 3 days.

Formula

1 h≈0.04167 d

72 h≈72 × 0.04167 d

72 h=3 d

hoursh

dimension	time
symbol	h

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

One hour can be divided into 60 minutes of 60 seconds each.

Definition of the hour

One hour is equal to 3600 seconds.

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

Equivalences

Here are some equivalences between the hour and other units of time:

Some Facts

The length of days on Earth is increasing, drifting further and further from the "ideal" day of 24 hours as the Moon moves away from us. It is the same phenomenon that figure skaters experiment when they stretch their arms out while spinning.

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.

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.