Like the regular day it is divided into 24 sidereal hours, each sidereal hour being divided into 60 sidereal minutes and each sidereal minute into 60 sidereal seconds. The sidereal day equals 23 hours 56 minutes 4.090 54 seconds, or 86 164.090 54 seconds. Thus the sidereal day, the average interval between two successive risings of the same star, is shorter than the mean solar day (see day) by 1/366.242. We only count 365.242 because one rotation is cancelled out for us by our tour around the sun. If we could view the earth from outside the Solar System, we would see that it actually completes 366.242 rotations during one year (one revolution around the sun). Sidereal day: a unit of time used in astronomy, equal to the period of time in which the earth makes one rotation relative to the stars. To convert directly from minutes to hours you multiply by 0.01 6. Simplified, this is the same as multiplying by 60/3600 which is 0.016666667. To convert from minutes to hours multiply the number of minutes by 60 and then divide by 3600. Or you can find the simplified factor by dividing the conversion factor for A by the conversion factor for B. To convert among any units in the left column, say from A to B, you can multiply by the factor for A to convert A into seconds then divide by the factor for B to convert out of seconds.
Multiply 28,800 seconds by 1/3600 hours per second.Multiply 120 minutes by 60 seconds per minuteĮxample: Convert 28,800 Seconds into Hours.The table below contains conversion factors to convert any time value into seconds using multiplication.Įxample: Convert 120 Minutes into Seconds
Where S is the starting value, C is the conversion factor, andĮ is the converted result. By knowing the conversion factor, converting between units can become a simple math problem: You can use conversion factors to convert a unit of time into another using multiplication or division. This calculator does not consider the extra day in a leap year which has 366 days per year. Years in this time converter are calculated as 365 days per year. This is equal to 365 days per year divided by 12 months per year. Months in this time conversion calculator are calculated using the average of 30.41 6 days per month. You can convert between seconds, milliseconds, microseconds, nanoseconds, days, hours, weeks, months, and years. Enter the time value and units you want to convert from, then choose the time unit you want to convert to.
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