![]() "What complicated this arrangement was that the two systems did not mesh well since there were a non-integral number of ke in each double hour, specifically 8 1/3. They also had a separate system in which a day was divided into 100 equal parts called 'ke', that are sometimes translated as 'mark' into English. The ancient Chinese used a dual time system where they divided the day into 12 so-called, 'double hours', originally with the middle of the first double hour being at midnight. Their adoption of a base 60 system was probably allowed them to make complex calculations using fractions. Lomb says it's likely that the Babylonians were interested in 360 because that was their estimate for the number of days in a year. "What we have not retained is their division of a day into 360 parts called 'ush' that each equalled four of minutes in our time system." "We have retained from the Babylonians not only hours and minutes divided into 60, but also their division of a circle into 360 parts or degrees," says Lomb. For example, III II (using slightly different strokes) meant three times 60 plus two or 182. The subdivision of hours and minutes into 60 comes from the ancient Babylonians who had a predilection for using numbers to the base 60. ^ to top Ancient Babylonians: hours and minutes "In summer, day-time hours were longer than night-time hours while in winter the hour lengths were the other around," says Lomb. ![]() In the Egyptian system, the length of the day-time and night-time hours were unequal and varied with the seasons. Amazingly, such tables have been found inside the lids of coffins, presumably so that the dead could also tell the time." "Tables were produced to help people to determine time at night by observing the decans. The Egyptians had a system of 36 star groups called 'decans' - chosen so that on any night one decan rose 40 minutes after the previous one. "Night-time was divided in 12 hours, based on the observations of stars. Our 24-hour day comes from the ancient Egyptians who divided day-time into 10 hours they measured with devices such as shadow clocks, and added a twilight hour at the beginning and another one at the end of the day-time, says Lomb. Use this converter of minutes to hours for your time conversions."The origin of our time system of 24 hours in a day with each hour subdivided into 60 minutes and then 60 seconds is complex and interesting," says Dr Nick Lomb, consultant curator of astronomy, from the Sydney Observatory. Hours are divided into minutes and multiplied into days. The time unit of hours is used daily to tell the time and calculate periods of time that usually occur within the space of a few days. Above you will find our minutes – hours conversion to help you in changing units. They are divided into seconds and multiplied into hours. Minutes are a very common unit used for a multiple of reasons, such as telling time and in cooking. For example, 2 hrs = 120 mins and 7 hrs = 420 mins. Our formula below is a useful tool if you wish to do this time conversion by hand or if you need to know the mathematical calculation for an exam. You might want to work in the other direction, convert hours to minutes. Our min s – hrs converter will quickly and accurately give you the resulst in hours. To change a certain number of minutes into hours, simply enter above in the box how many minutess you want to calculate and click ¨convert¨. ![]() Both these units of time are used in our everyday language for many things, so try our minute s to hours calculator above for your conversions. It can be particularly useful when converting movie running times that are usually shown in minutes, or when reading chocolate recipes and converting cooking times. This is an online converter for minutes – hours that will help you calculate different quantities of time measurements.
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