Conversion formula exactly how to convert 90 minute to hours?

We understand (by definition) that:1⁢min≈0.016666667⁢hr

We can set up a relationship to solve for the number of hours.

You are watching: What is 90 minutes in hours

1⁢min90⁢min≈0.016666667⁢hrx⁢hr

Now, us cross main point to deal with for our unknown x:

x⁢hr≈90⁢min1⁢min*0.016666667⁢hr→x⁢hr≈1.50000003⁢hr

Conclusion:90⁢min≈1.50000003⁢hr


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Conversion in the opposite direction

The inverse of the conversion element is the 1 hour is same to 0.666666666666667 times 90 minutes.

It can likewise be to express as: 90 minute is same to 1 0.666666666666667 hours.

Approximation

An approximate numerical result would be: ninety minute is around zero hours, or alternatively, a hour is about zero point six seven times ninety minutes.

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Units involved

This is just how the units in this conversion space defined:

Minutes

"The minute is a unit of time or of angle. Together a unit the time, the minute is same to 1⁄60 (the an initial sexagesimal fraction) of an hour, or 60 seconds. In the UTC time standard, a minute on rarely occasions has 61 seconds, a repercussion of leap seconds (there is a provision come insert a an adverse leap second, i beg your pardon would an outcome in a 59-second minute, yet this has actually never taken place in more than 40 years under this system). As a unit of angle, the minute of arc is equal to 1⁄60 the a degree, or 60 seconds (of arc). Although not an SI unit for either time or angle, the minute is welcomed for use with SI systems for both. The SI symbols for minute or minutes are min because that time measurement."

Wikipedia web page of minutes

Hours

"Midnight (or noon) on a 12-hour analog clock an hour is a unit of time traditionally reckoned as 1⁄24 the a day and scientifically reckoned as 3,599–3,601 seconds, depending on conditions.The seasonal, temporal, or uneven hour was established in the old Near east as 1⁄12 the the night or daytime. Such hrs varied by season, latitude, and weather. It to be subsequently divided into 60 minutes, every of 60 seconds. Its East asian equivalent to be the shi, which was 1⁄12 that the obvious solar day; a comparable system was eventually arisen in Europe i beg your pardon measured its equal or equinoctial hour as 1⁄24 of such days measured indigenous noon come noon. The minor variations of this unit were eventually smoothed by making it 1⁄24 that the average solar day, based on the measure of the suns transit follow me the celestial equator quite than follow me the ecliptic. This was ultimately abandoned due to the minor slowing brought about by the Earths tidal deceleration by the Moon.In the modern-day metric system, hrs are an welcomed unit that time equal to 3,600 seconds but an hour the Coordinated global Time (UTC) might incorporate a confident or an unfavorable leap second, make it last 3,599 or 3,601 seconds, in bespeak to save it within 0.9 seconds of universal time, i beg your pardon is based on measurements of the typical solar day in ~ 0° longitude."

Wikipedia page of hours

Footnotes

<1> The precision is 15 significant digits (fourteen number to the ideal of the decimal point).