Conversion formula just how to convert 72 hours to days?

We know (by definition) that:1⁢hr≈0.041666667⁢d

We can set up a proportion to solve for the variety of days.

You are watching: How much is 72 hours in days


Now, us cross multiply to solve for ours unknown x:




Conversion in opposing direction

The station of the conversion factor is that 1 job is equal to 0.333333333333333 times 72 hours.

It can additionally be expressed as: 72 hours is equal to 1 0.333333333333333 days.


An almost right numerical an outcome would be: seventy-two hours is around zero days, or alternatively, a work is around zero point three 3 times seventy-two hours.

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Units involved

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


"Midnight (or noon) on a 12-hour analog clock one hour is a unit the time traditionally reckoned together 1⁄24 of a day and also scientifically reckoned as 3,599–3,601 seconds, depending on conditions.The seasonal, temporal, or unequal hour was created in the ancient Near eastern as 1⁄12 of the night or daytime. Such hours varied by season, latitude, and also weather. It was subsequently divided into 60 minutes, each of 60 seconds. Its East oriental equivalent to be the shi, which to be 1⁄12 that the apparent solar day; a comparable system to be eventually emerged in Europe i m sorry measured its same or equinoctial hour as 1⁄24 of together days measured from noon to noon. The young variations the this unit were eventually smoothed by making the 1⁄24 that the mean solar day, based upon the measure up of the suns transit along the celestial equator fairly than follow me the ecliptic. This was lastly abandoned because of the young slowing led to by the Earths tidal deceleration by the Moon.In the contemporary metric system, hrs are an embraced unit that time equal to 3,600 seconds yet an hour that Coordinated global Time (UTC) may incorporate a confident or negative leap second, making it last 3,599 or 3,601 seconds, in stimulate to store it within 0.9 secs of global time, i beg your pardon is based upon measurements the the median solar day in ~ 0° longitude."

Wikipedia web page of hours


"A day is a unit of time. In common usage, it is either an interval same to 24 hrs or daytime, the consecutive period of time during which the sun is above the horizon. The period of time throughout which the earth completes one rotation through respect to the sun is referred to as a solar day. Several meanings of this universal human principle are supplied according come context, need and also convenience. In 1960, the second was redefined in regards to the orbital movement of the Earth, and also was designated the SI basic unit that time. The unit of measurement day, redefined in 1960 together 86 400 SI seconds and symbolized d, is not an SI unit, yet is welcomed for use through SI. A civil day is generally 86 400 seconds, to add or minus a feasible leap 2nd in Coordinated universal Time (UTC), and occasionally to add or minus an hour in those areas that change from or to daylight saving time."

Wikipedia web page of days


<1> The precision is 15 far-ranging digits (fourteen digits to the best of the decimal point).