How many millicentury in 1 tropical year? The answer is 9.9997862464192. We assume you are converting between millicentury and tropical year. You can view more details on each measurement unit: millicentury or tropical year The SI base unit for time is the second. 1 second is equal to 3.1688087814029E-7 millicentury, or 3.1688765172731E-8 tropical year. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between millicenturies and years. Type in your own numbers in the form to convert the units!
You may also want to find out how many days are between two dates on the calendar. Use the date calculatorto get your age in days or measure the duration of an event.
1 millicentury to tropical year = 0.1 tropical year
5 millicentury to tropical year = 0.50001 tropical year
10 millicentury to tropical year = 1.00002 tropical year
20 millicentury to tropical year = 2.00004 tropical year
30 millicentury to tropical year = 3.00006 tropical year
40 millicentury to tropical year = 4.00009 tropical year
50 millicentury to tropical year = 5.00011 tropical year
75 millicentury to tropical year = 7.50016 tropical year
100 millicentury to tropical year = 10.00021 tropical year
You can do the reverse unit conversion from tropical year to millicentury, or enter any two units below:
The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.
So 1 millicentury = 10-3 centuries.
The definition of a century is as follows:
A century is a period of 100 years, which can have either 24 or 25 leap years, depends on whether the year xx00 is a leap year or not.
We assume there are 25 leap year days in a typical century. A non-leap year of 365 days would have 86,400 * 365 = 31,536,000 seconds in it. Adding another 25 days adds 2,160,000 seconds, so there are a total of 3,155,760,000 seconds in a century that has 25 leap years.
The mean tropical year is defined as the period of time for the mean ecliptic longitude of the Sun to increase by 360 degrees. Since the Sun's ecliptic longitude is measured with respect to the equinox, the tropical year comprises a complete cycle of the seasons; because of the biological and socio-economic importance of the seasons, the tropical year is the basis of most calendars.
The International Union of Pure and Applied Chemistry and the International Union of Geological Sciences have jointly recommended using defining the annus, with symbol a, as the length of the tropical year in the year 2000:
a = 31556925.445 seconds (approximately 365.24219265 ephemeris days)
We default to using the Gregorian year on this site, but you can select a specific type of year by entering the full name like "tropical year".
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