**Definitions:**

**Hour** (abbreviations: **hr, or h**): is a unit of time, conventionally counted as 1/24 of a day. In the modern metric system, it is equivalent to 3,600 seconds.

**Day** (abbreviations: **dy, or d**): is a unit of time. In common usage, it is either an interval equal to 24 hours or daytime, the consecutive period of time during which the Sun is above the horizon. As well, it is equivalent to a solar day, the period of time during which the Earth completes one rotation with respect to the Sun.

## How to Convert Hours to Days

*Example: How many days are equivalent to 55.91 hours?*

As;

1 hours = 0.041666666666667 days

55.91 hours = Y days

Assuming Y is the answer, and by criss-cross principle;

Y equals 55.91 times 0.041666666666667 over 1

(i.e.) Y = 55.91 * 0.041666666666667 / 1 = 2.3295833333333 days

Answer is: 2.3295833333333 days are equivalent to 55.91 hours.

*Practice Question: Convert the following units into dy:*

N.B.: After working out the answer to each of the next questions, click adjacent button to see the correct answer.

( i ) 0.79 hr

( ii ) 15.02 hr

( iii ) 31.72 hr