Conversion formula exactly how to convert 72 hrs to days?

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

We can collection up a relationship to deal with for the variety of days.

You are watching: How long is 72 hours in days


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




Conversion in opposing direction

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

It can likewise be expressed as: 72 hours is same to 1 0.333333333333333 days.


An approximate numerical result would be: seventy-two hours is around zero days, or alternatively, a job is about zero suggest three three times seventy-two hours.

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Units involved

This is how the units in this conversion room defined:


"Midnight (or noon) ~ above a 12-hour analog clock an hour is a unit the time traditionally reckoned together 1⁄24 of a day and scientifically reckoned together 3,599–3,601 seconds, relying on conditions.The seasonal, temporal, or uneven hour was created in the old Near eastern as 1⁄12 the the night or daytime. Such hrs varied by season, latitude, and weather. It to be subsequently split into 60 minutes, each of 60 seconds. Its East eastern equivalent to be the shi, which was 1⁄12 that the obvious solar day; a similar system was eventually arisen in Europe which measured its equal or equinoctial hour as 1⁄24 of such days measured indigenous noon to noon. The young variations that this unit were eventually smoothed through making that 1⁄24 that the typical solar day, based on the measure up of the suns transit along the celestial equator quite than follow me the ecliptic. This was ultimately abandoned due to the young slowing led to by the Earths tidal deceleration by the Moon.In the contemporary metric system, hours are an accepted unit of time same to 3,600 seconds however an hour of Coordinated universal Time (UTC) may incorporate a positive or an adverse leap second, do it critical 3,599 or 3,601 seconds, in stimulate to store it in ~ 0.9 seconds of global time, i m sorry is based on measurements of the median solar day in ~ 0° longitude."

Wikipedia page of hours


"A work is a unit of time. In common usage, it is either an interval same to 24 hrs or daytime, the consecutive duration of time throughout which the sunlight is above the horizon. The period of time during which the planet completes one rotation v respect to the sunlight is dubbed a solar day. Several definitions of this universal human ide are used according come context, need and also convenience. In 1960, the second was redefined in regards to the orbital activity of the Earth, and also was designated the SI base unit of time. The unit of measurement day, redefined in 1960 together 86 400 SI seconds and also symbolized d, is not an SI unit, but is accepted for use through SI. A polite day is normally 86 400 seconds, add to or minus a feasible leap second in Coordinated universal Time (UTC), and also occasionally to add or minus one hour in those places that change from or come daylight saving time."

Wikipedia page of days


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