How many fortnight in 1 tropical year? The answer is 26.088728046462. We assume you are converting between fortnight and tropical year. You can view more details on each measurement unit: fortnight or tropical year The SI base unit for time is the second. 1 second is equal to 8.2671957671958E-7 fortnight, 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 fortnights 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 fortnight to tropical year = 0.03833 tropical year
10 fortnight to tropical year = 0.38331 tropical year
20 fortnight to tropical year = 0.76661 tropical year
30 fortnight to tropical year = 1.14992 tropical year
40 fortnight to tropical year = 1.53323 tropical year
50 fortnight to tropical year = 1.91654 tropical year
100 fortnight to tropical year = 3.83307 tropical year
200 fortnight to tropical year = 7.66615 tropical year
You can do the reverse unit conversion from tropical year to fortnight, or enter any two units below:
A fortnight is a unit of measurement of time equal to two weeks: that is 14 days, or literally 14 nights. The term is most commonly used in British English. It derives from the Old English feowertiene niht, meaning "fourteen nights".
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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