JKS has two birthdays officially. One is August 4th. The other is September 26th. New eels might not know what the difference is. We posted the reason several times before. But here we integrate the information.
The difference derives from which calendar we use to describe birthday; solar calendar or lunar calendar.
The calendar that we all use currently is the Gregorian calendar (sometimes called new calendar), which is a solar calendar whose dates indicate the position of the earth on its revolution around the sun. On the other hand, a lunar calendar (sometimes called old calendar) is based on cycles of the moon phase. In some countries, they still celebrate some holidays based on the lunar calendar. For example, lunar New Year festival.
His birthday based on the Gregorian (solar) calendar is September 26th, 1987. On that day, the corresponding date on the lunar calendar is the 4th day of the 8th month. In solar calendar, date doesn’t change. So his birthday is always September 26th every year, but in lunar calendar ‘the 4th day of the 8th month’ changes every year. In short, the number of days in the lunar year is not the same as the Gregorian calendar. For example, in 2013, the 4th day of the 8th month of the lunar calendar falls on September 8th, 2013.
JKS’ birth date based on the solar calendar we usually use nowadays: September 26th, 1987
JKS’ birth date based on the lunar calendar: August 4th, 1987
* We can say his birth date is ‘August 4th, 1987’ in lunar calendar. But please don’t forget to mention the birth year. As I mentioned before, the 4th day of the 8th month of the lunar calendar differs every year.
JKS’ birthday based on the solar calendar we usually use nowadays: September 26th [every year]
JKS’ birthday based on the lunar calendar: the 4th day of the 8th month [the corresponding date on the solar calendar changes every year]
* If you’re interested in Lunar Calendar 2013, please check the website. You can check the lunar calendar in 1987, too.
So, he can actually celebrates his birthday 3 times a year : August 4th, September 26th and 4th day of the 8th month. In 2013, the 4th day of the 8th month of the lunar calendar falls on September 8th. So, this year his 3 birthdays are August 4th, September 26th and September 8th.
I’m afraid some eels are still confused about his birthday mystery after reading my explanation above. OK. Let’s think it simple. I think it’s easier for us to acknowledge that his birthday is September 26th, 1987. Because we use solar calendar globally now.
For some reason, he has mixed his lunar and Gregorian dates and stated his birthday as August 4th, 1987. In Korea, I heard people still use lunar calendar for ritual or ceremony. Just for your information, it’s not him but his mother who prefers using lunar calendar to describe the birth date. Before he explained his birthday mystery during CRI SHOW2. My hypothesis is that his mother registered his profile using his lunar birth date ‘August 4th, 1987’ when JKS started working as a child star. Without supplemental remarks, as we usually use solar calendar now, I suppose others including his agency mistook his birthday must be August 4th, 1987. As a result, his birthday was officially August 4th, 1987 for a long time. I think the reason he still celebrates his birthday on August 4th in solar calendar means he respects his mother’s idea and fans who has still believed his birthday is August 4th. I think it’s very thoughtful. JKS decided to celebrate his birthday for more than one month. He called it “birthday carnival month”. Usually it starts from August 4th till September 26th. I think he’s really genius to decide it. We can thank he was born to the world for a longer time every year ^^