The Kazoedoshi System – Japanese Age Counting Explained

By Roel Feeney | Published Oct 27, 2024 | Updated Oct 27, 2024 | 13 min read

In traditional Japanese age counting, a person is already 1 year old the moment they are born, and gains 1 additional year every January 1st, regardless of their actual birthday. This means a baby born on December 31st is 1 at birth and becomes 2 the very next day. The system differs from the Western … Read more

Chinese Lunar Age Explained – How It Differs From Western Age

By Roel Feeney | Published Jan 14, 2024 | Updated Jan 14, 2024 | 13 min read

In Chinese tradition, a baby is considered 1 year old at birth, not zero, because time in the womb counts as the first year of life. Chinese lunar age (called xusui, meaning “nominal age”) runs 1 to 2 years higher than Western age, depending on whether the Lunar New Year has already passed in the … Read more

Vietnamese Age Counting – The Tuoi Mung System

By Roel Feeney | Published Jul 07, 2023 | Updated Jul 07, 2023 | 13 min read

In Vietnam, a baby is considered 1 year old at birth, not zero, and gains another year every Lunar New Year (Tet) rather than on their birthday. This means a Vietnamese child born in December could be counted as 2 years old by February of the following year, even though they are only a few … Read more

Why Age Matters So Much in Asian Cultures

By Roel Feeney | Published Sep 04, 2022 | Updated Sep 04, 2022 | 14 min read

Age in Asian cultures functions as a social currency that determines speech, seating, who serves food first, and who makes decisions. Across countries like South Korea, Japan, China, Vietnam, and the Philippines, being 1 year older than someone can change the entire dynamic of a relationship. These norms trace back over 2,500 years to Confucian … Read more

How the Lunar Calendar Changes Your Age Calculation

By Roel Feeney | Published Mar 22, 2022 | Updated Mar 22, 2022 | 15 min read

The lunar calendar makes you 1 to 2 years older than your Gregorian (standard Western calendar) age, depending on cultural rules and birth timing. In East Asian age-reckoning systems tied to the lunar year, a baby is counted as age 1 at birth and gains another year on Lunar New Year, not on their birthday. … Read more

Why South Korea Changed Its Age System in 2023

By Roel Feeney | Published Nov 28, 2021 | Updated Nov 28, 2021 | 14 min read

South Korea officially switched to the international age system on June 28, 2023, making most citizens 1 to 2 years younger overnight. The National Assembly passed the reform to end legal confusion caused by three competing age systems. Under the old traditional system, a baby born on December 31 could be counted as 2 years … Read more

Why You Are 1 or 2 Years Older in Korea

By Roel Feeney | Published Sep 21, 2021 | Updated Sep 21, 2021 | 14 min read

In South Korea, everyone is born at age 1, not 0, and everyone gains a year every January 1 regardless of their actual birthday. That means if you are 28 by American reckoning, you could be 29 or 30 in Korean age depending on when your birthday falls in the calendar year. The Three Age … Read more

Countries That Count Age Differently Than the West

By Roel Feeney | Published Mar 11, 2020 | Updated Mar 11, 2020 | 14 min read

South Korea, Japan, and China use age-counting systems where a person is already 1 year old at birth, making them 1 to 2 years older by Western reckoning. South Korea formally abolished its traditional system for legal purposes in June 2023, though the old method persists culturally. Understanding these systems matters for anyone navigating legal … Read more

How the Korean Age System Works

By Roel Feeney | Published Dec 28, 2019 | Updated Dec 28, 2019 | 13 min read

In Korea, everyone is born at age 1 and gains another year every January 1st, regardless of their actual birthday. This means a baby born on December 31st is considered 2 years old just one day later. Under this system, Koreans are typically 1 to 2 years older than their international age. You Start Life … Read more

Korean vs Chinese vs Japanese Age Systems – Side by Side

By Roel Feeney | Published Aug 23, 2019 | Updated Aug 23, 2019 | 14 min read

All three East Asian age systems count age differently from the Western method. Korea’s traditional system makes everyone 1 at birth and adds a year every January 1, while Japan abandoned its traditional system in 1950 and now uses the international standard. China’s traditional system is rarely used today outside of cultural contexts, and South … Read more