South Koreans are about to get a year or two younger, thanks to a new law

By Jessie Yeung and Yoonjung Seo, CNN

South Koreans are about to get a year or two younger, thanks to a new law passed on Thursday that aims to standardize how age is calculated in the country.

At present it’s common for South Koreans to have not just one age, but three — an “international age,” a “Korean age” and a “calendar age.”

But to end confusion, the country’s parliament has decreed that from June 2023 all official documents must use the standard “international age.”

That move, which follows a long-running debate over the issue, will bring the country into line with most of the rest of the world and cut down on legal discrepancies that arise from the use of three different systems.

In South Korea, a person’s “international age” refers to the number of years since they were born, and starts at zero — the same system used in most other countries.

But when asked their age in informal settings, most South Koreans will answer with their “Korean age,” which could be one or even two years older than their “international age.”

Under this system, babies are considered a year old on the day they’re born, with a year added every January 1.

In some circumstances, South Koreans also use their “calendar age” — a kind of mash-up between international and Korean age — which consider babies as zero years old the day they’re born and adds a year to their age every January 1.

Take “Gangnam Style” singer Psy, for example. Born on December 31, 1977, he is considered 44 by international age; 45 by calendar year age; and 46 by Korean age.

If this sounds confusing, it is, with daily life in the country often switching between the hodgepodge of different systems.

Most people use Korean age, which has its roots in China, in everyday life and social scenarios, while international age is more often used for legal and official matters — for instance, when dealing with civil laws.

However, some laws — including those surrounding the legal ages for drinking, smoking, and military conscription — use calendar year age.

The law passed Thursday will standardize the use of international age across all “judicial and administrative areas,” according to the parliament website and documents related to the bill.

“The state and local governments shall encourage citizens to use their ‘international age’ and conduct necessary promotion for that,” it says.

The decision is the result of years of campaigning by lawmakers fed up with the multiple systems.

“The revision is aimed at reducing unnecessary socio-economic costs because legal and social disputes as well as confusion persist due to the different ways of calculating age,” Yoo Sang-bum of the ruling People Power Party told parliament, according to Reuters.

Another bill introduced by lawmaker Hwang Ju-hong in 2019 argued that apart from sowing confusion, the three methods also caused conflict by “fostering a culture of hierarchy based on age and avoiding certain months for childbirth.”

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Reuters and CNN’s Jungyoun Choi contributed to this report.