48 Hours to Seconds | 48 hr to s

April 2023 · 4 minute read

What is 48 Hours in Seconds?

48 Hours = 172800 Seconds

How to convert 48 Hours to Seconds

To convert 48 Hours to Seconds you have to multiply 48 by 3600, since 1 Hour is 3600 Seconds. The result is the following:

48 hr × 3600 = 172800 s

48 hr = 172800 s

We conclude that forty-eight Hours is equivalent to one hundred seventy-two thousand eight hundred Seconds:

48 Hours is equal to 172800 Seconds.

Therefore, if you want to calculate how many Seconds are in 48 Hours you can do so by using the conversion formula above.

Hours to Seconds conversion table

Below is the conversion table you can use to convert from Hours to Seconds

Hours (hr) Seconds (s) 49 Hours 176400 Seconds 50 Hours 180000 Seconds 51 Hours 183600 Seconds 52 Hours 187200 Seconds 53 Hours 190800 Seconds 54 Hours 194400 Seconds 55 Hours 198000 Seconds 56 Hours 201600 Seconds 57 Hours 205200 Seconds 58 Hours 208800 Seconds

Definition of units

Let's see how both units in this conversion are defined, in this case Hours and Seconds:

Hour (hr)

An hour (symbol: h; also abbreviated hr.) is a unit of time conventionally reckoned as 1⁄24 of a day and scientifically reckoned as 3,599–3,601 seconds, depending on conditions. The seasonal, temporal, or unequal hour was established in the ancient Near East as 1⁄12 of the night or daytime. Such hours varied by season, latitude, and weather. It was subsequently divided into 60 minutes, each of 60 seconds. Its East Asian equivalent was the shi, which was 1⁄12 of the apparent solar day; a similar system was eventually developed in Europe which measured its equal or equinoctial hour as 1⁄24 of such days measured from noon to noon. The minor variations of this unit were eventually smoothed by making it 1⁄24 of the mean solar day, based on the measure of the sun's transit along the celestial equator rather than along the ecliptic. This was finally abandoned due to the minor slowing caused by the Earth's tidal deceleration by the Moon. In the modern metric system, hours are an accepted unit of time equal to 3,600 seconds but an hour of Coordinated Universal Time (UTC) may incorporate a positive or negative leap second, making it last 3,599 or 3,601 seconds, in order to keep it within 0.9 seconds of universal time, which is based on measurements of the mean solar day at 0° longitude.

Second (s)

The second (symbol: s) (abbreviated s or sec) is the base unit of time in the International System of Units (SI). It is qualitatively defined as the second division of the hour by sixty, the first division by sixty being the minute. The SI definition of second is "the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom". Seconds may be measured using a mechanical, electrical or an atomic clock. SI prefixes are combined with the word second to denote subdivisions of the second, e.g., the millisecond (one thousandth of a second), the microsecond (one millionth of a second), and the nanosecond (one billionth of a second). Though SI prefixes may also be used to form multiples of the second such as kilosecond (one thousand seconds), such units are rarely used in practice. The more common larger non-SI units of time are not formed by powers of ten; instead, the second is multiplied by 60 to form a minute, which is multiplied by 60 to form an hour, which is multiplied by 24 to form a day. The second is also the base unit of time in other systems of measurement: the centimetre–gram–second, metre–kilogram–second, metre–tonne–second, and foot–pound–second systems of units.

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