How to Calculate Age in Lunar Years

Save

A lunar year is defined as a certain number of phases of the moon. To calculate your age in lunar years, you'll need to know the time between lunar phases, called the "synodic month," which is approximately 29.530 Earth days. Twelve is the usual number of phases per lunar year--the Islamic calendar being the prime example. The Chinese calendar also uses lunar months but its new year stays pinned between Jan. 10 and Feb. 19--instead of roaming through the entire Gregorian year, as the Islamic calendar does. In other words, the number of phases varies between Chinese years.

Islamic Lunar Years

  • Multiply the number of years you've been alive by 365 days.

  • Add an extra day for each year divisible by four (leap years).

  • Add up the days since your last birthday and add that to the result in Step 2.

  • Divide the total in Step 3 by 29.53.

  • Truncate the decimal places. That is your age in lunar years.

    For example, if the result of Step 4 is 43.23, you are 43 lunar years old.

Chinese Lunar Years

  • Look up the date of the new year in the year that you were born and of the current year.

  • Subtract 1 from your birth year if you were born before that year's Chinese New Year's Day, as determined in Step 1. For example, if Chinese New Year was on Jan. 31, 1976, and you were born on Jan. 16, 1976, then use 1975 as the basis for determining your age.

  • Subtract 1 from the current year if the Chinese New Year hasn't occurred yet for the current Gregorian year.

  • Find the difference between the results of Step 2 and Step 3, and then add 1. You add 1 because the Chinese count the time in the womb toward your age.

Related Searches

References

  • Photo Credit earth and moon image by smn from Fotolia.com
Promoted By Zergnet

Comments

Resources

You May Also Like

  • How to Find Your Chinese Birthday

    On October 1, 1949, when the People's Republic was formed by President Mao Zedong, the Chinese officially adopted the Gregorian calendar, which...

  • How to Calculate a Lunar Birth Date

    The Chinese lunar calendar differs from the standard Western, Gregorian calendar in many respects. According to Helmer Aslaksen, each calendar year is...

  • The Difference Between Solar & Lunar Years

    A solar year is calculated based on the movements of the sun, whereas a lunar year is based on the movements of...

  • What Is the Lunar New Year?

    The Lunar New Year begins the year according to the lunar calendar. Unlike the Gregorian calendar generally used in Western countries, the...

Related Searches

Check It Out

How to Build and Grow a Salad Garden On Your Balcony

M
Is DIY in your DNA? Become part of our maker community.
Submit Your Work!