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DAY6 Member Ages and Birthdays
South Korea · Official roster: 4 (4 birthdays recorded)
DAY6 members from oldest to youngest: SUNGJIN (33), Young K (32), WONPIL (32), DOWOON (31). The oldest is SUNGJIN, born January 16, 1993; the youngest is DOWOON, born August 25, 1995.
Debut date: Next debut anniversary: September 7
Official lightstick: Light Band (라이트밴드), current version Ver.3 (a wristband design, not a traditional lightstick)
Fandom name: My Day (마이데이)
Sources for support color / lightstick / fandom name: TenAsia (reporting JYP Entertainment announcement, January 2, 2018), KPOP USA: DAY6 Official Light Band (JYP-licensed retailer page), Kpop Merchandise Guide: DAY6 Light Band (third-party catalog; used to cross-check design and name) (verified August 28, 2026)
Make a photocard for DAY6 →Make fan photocards from your own photos. Free to download.Or make a DAY6 phone wallpaper from your own photo →
Exports 4 recorded birthdays on this page, repeating yearly. This file does not update automatically; download and import it again after corrections. Set reminders in your calendar app.
Birthdays of all members
| Birthday | Member | Other spellings |
|---|---|---|
| January 16 | SUNGJIN 朴晟鎮성진박성진ソンジンPark Sungjin | 晟鎮 |
| December 19 | Young K 姜永晛영케이강영현ヨンケイKang Young-hyun | Kang Younghyun |
| April 28 | WONPIL 金元弼원필김원필ウォンピルKim Wonpil | DAY6金元弼 |
| August 25 | DOWOON 尹度云도운윤도운ドウンYoon Dowoon | 度云 |
Roster source: DAY6 OFFICIAL SITE (JYP) PROFILE (retrieved August 20, 2026)
Age ranking of members (oldest to youngest)
We have full birth dates for 4 of 4 members (members with only a birth month and day are left out, since their age can’t be calculated). Ages update to today’s date.
| Rank | Member | Birthday | Age | Age at debut |
|---|---|---|---|---|
| 1 | SUNGJIN | January 16, 1993 | 33 | 22 |
| 2 | Young K | December 19, 1993 | 32 | 21 |
| 3 | WONPIL | April 28, 1994 | 32 | 21 |
| 4 | DOWOON | August 25, 1995 | 31 | 20 |
Ages here are international ages (counted from the date of birth), the system South Korea has also used officially since June 2023, not “Korean age”.
DAY6 Members’ Zodiac Signs
Only members with a known birthday are included. Sign boundaries: zodiac index
This page lists all 4 members on DAY6’s official roster. 4 of them have their own page on this site (our inclusion rule: someone has held a support event for them, or a verifiable identity or birthday source exists). The rest are marked “roster only” and appear only in this table. Birthdays are listed only when we find a verifiable source; otherwise they’re marked “no verifiable source found.” We never fill gaps with guesses. Spotted an error, or have a verifiable official source? Email service@joelin.cc. (email us a report)
We’ve logged 1 support cases for this group’s members (the combined total of each member’s cases; see each member’s page for details).
Fan Events
Events posted by fans show up here as soon as they’re published. Whether an event is also featured on the home page is a separate pick by Joe and has nothing to do with this list.
Want to hold a support event for DAY6?
Group support usually centers on debut anniversaries and concerts. Each member’s birthday is in the table above.
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FAQ
- What are the birthdays of DAY6's members?
- DAY6’s official roster has 4 members. Those with a verifiable birthday on this site: SUNGJIN January 16, Young K December 19, WONPIL April 28, DOWOON August 25. Each birthday’s source is cited on this page and on the person’s own page.
- How many DAY6 members are listed on this site?
- DAY6: Official roster: 4. Of these, 4 have a verifiable birthday recorded on this site. This page lists all 4 members on DAY6’s official roster. 4 of them have their own page on this site (our inclusion rule: someone has held a support event for them, or a verifiable identity or birthday source exists). The rest are marked “roster only” and appear only in this table. Birthdays are listed only when we find a verifiable source; otherwise they’re marked “no verifiable source found.” We never fill gaps with guesses. Spotted an error, or have a verifiable official source? Email service@joelin.cc.
- When was DAY6’s debut?
- DAY6's debut date is September 7, 2015, so every year on September 7 marks the debut anniversary. In other words, DAY6’s debut year is 2015. The debut anniversary is one of the most common occasions for group fan support.
- What are DAY6's official lightstick and fandom name?
- DAY6's official lightstick is Light Band (라이트밴드), current version Ver.3 (a wristband design, not a traditional lightstick), and the official fandom name is My Day (마이데이). We only list details backed by an official source; anything we can’t verify is left out. Sources are cited at the bottom of this page.
- What is the age order of DAY6's members? Who is the oldest?
- We have birth years for 4 of 4 DAY6 members (members with only a birth month and day can’t be ranked by age). Ordered from oldest to youngest: SUNGJIN (born January 16, 1993), Young K (born December 19, 1993), WONPIL (born April 28, 1994), DOWOON (born August 25, 1995). The oldest is SUNGJIN, and the youngest is DOWOON.
- What are the zodiac signs of DAY6’s members?
- Based on their birthdays: Taurus: WONPIL; Virgo: DOWOON; Sagittarius: Young K; Capricorn: SUNGJIN. Signs use the month and day only, with the boundary dates explained on our zodiac pages.