›› Convert millennium to tropical year

tropical year

›› More information from the unit converter

How many millennium in 1 tropical year? The answer is 0.0010006635415081.
We assume you are converting between millennium and tropical year.
You can view more details on each measurement unit:
millennium or tropical year
The SI base unit for time is the second.
1 second is equal to 3.1709791983765E-11 millennium, 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 millennia and years.
Type in your own numbers in the form to convert the units!

›› Date difference between calendar days

You may also want to find out how many days are between two dates on the calendar. Use the date calculator to get your age in days or measure the duration of an event.

›› Quick conversion chart of millennium to tropical year

1 millennium to tropical year = 999.3369 tropical year

2 millennium to tropical year = 1998.6738 tropical year

3 millennium to tropical year = 2998.0107 tropical year

4 millennium to tropical year = 3997.34759 tropical year

5 millennium to tropical year = 4996.68449 tropical year

6 millennium to tropical year = 5996.02139 tropical year

7 millennium to tropical year = 6995.35829 tropical year

8 millennium to tropical year = 7994.69519 tropical year

9 millennium to tropical year = 8994.03209 tropical year

10 millennium to tropical year = 9993.36898 tropical year

›› Want other units?

You can do the reverse unit conversion from tropical year to millennium, or enter any two units below:

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›› Common time conversions

millennium to microsecond
millennium to month
millennium to fortnight
millennium to quarter
millennium to day
millennium to week
millennium to century
millennium to decade
millennium to minute
millennium to shake

›› Definition: Millennium

A millennium is a period of time equal to one thousand years. There are two main viewpoints about naming millennia and there was a popular debate leading up to the celebrations of the year 2000 as to whether 2000 was the beginning of a new millennium. Historically, there has been debate around the turn of the millennium, centuries and decades before.

›› Definition: Year

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".

›› Metric conversions and more

ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!