DAY6
韓國 Official roster: 4（4 birthdays recorded）
Debut date: Next debut anniversary: September 7
Official lightstick: Light Band（라이트밴드），現行 Ver.3（手環造型，非傳統手燈）
Sources for support color / lightstick / fandom name: KPOP USA：DAY6 Official Light Band（JYP 授權經銷頁）、Kpop Merchandise Guide：DAY6 Light Band（第三方型錄，交叉確認造型與命名） (verified 2026-08-28)
member Birthdays
| Birthday | member | Other spellings |
|---|---|---|
| January 16 | SUNGJIN （박성진） | Park Sungjin, SUNGJIN, ソンジン |
| December 19 | Kang Younghyun （강영현） | Kang Younghyun, Young K, ヨンケイ |
| April 28 | WONPIL （김원필） | DAY6金元弼 |
| August 25 | DOWOON （윤도운） | DOWOON, Yoon Dowoon, ドウン |
Roster source: DAY6 OFFICIAL SITE（JYP）PROFILE (obtained 2026-08-20)
member Age Ranking
This site has birth-year data for 4 out of 4 member (member with only month/day and no birth year are excluded, as age cannot be calculated). Oldest: SUNGJIN (33 (in 2026; 32 before January 16)); youngest: DOWOON (31 (in 2026; 30 before August 25)).
| Rank | member | Birthday | Age |
|---|---|---|---|
| 1 | SUNGJIN | January 16, 1993 | 33 (in 2026; 32 before January 16) |
| 2 | Kang Younghyun | December 19, 1993 | 33 (in 2026; 32 before December 19) |
| 3 | WONPIL | April 28, 1994 | 32 (in 2026; 31 before April 28) |
| 4 | DOWOON | August 25, 1995 | 31 (in 2026; 30 before August 25) |
This page lists all 4 member per DAY6's official roster; 4 of them have an individual page on this site (our inclusion criterion is "has anyone held a support event for them, or is there a verifiable identity/birthday source"). The rest are marked "roster-only entry" — listed in this table only, with no individual page. Birthdays are listed only when a verifiable source is found; otherwise marked "no verifiable source obtained," never filled in by guesswork. Found an error, or have a verifiable official source? Please email service@joelin.cc. (open a report email)
This site records 1 support cases related to this group's members (a total of each member's individual cases; see each member's page for details).
Want to hold a support event for DAY6?
Group support is commonly held around debut anniversaries and concerts, with member birthdays each following the dates in the table above.
How & where to hold a photo booth event → Custom photo booth frame / full-booth booking →
FAQ
- What are the birthdays of DAY6's member?
- DAY6's official roster has 4 member in total; the ones with a verifiable birthday on this site are:SUNGJIN January 16, Kang Younghyun December 19, WONPIL April 28, DOWOON August 25. Every birthday's source is cited both on this page and on the individual's own page.
- How many member of DAY6 are on this site?
- DAY6 has Official roster: 4, of whom 4 have a verifiable birthday recorded on this site. This page lists all 4 member per DAY6's official roster; 4 of them have an individual page on this site (our inclusion criterion is "has anyone held a support event for them, or is there a verifiable identity/birthday source"). The rest are marked "roster-only entry" — listed in this table only, with no individual page. Birthdays are listed only when a verifiable source is found; otherwise marked "no verifiable source obtained," never filled in by guesswork. Found an error, or have a verifiable official source? Please email service@joelin.cc.
- When did DAY6 debut?
- DAY6's debut date is September 7, 2015, so every year on September 7 marks the debut anniversary. In other words, DAY6 debut in 2015. The debut anniversary is one of the most common occasions for group fan support.
- What is the age order of DAY6's member? Who is the oldest?
- Among DAY6's member, this site has birth-year data for 4 out of 4(member with only month/day and no birth year cannot have an age calculated, and are excluded from the ranking.) Ordered from oldest to youngest: SUNGJIN（33 (in 2026; 32 before January 16)）, Kang Younghyun（33 (in 2026; 32 before December 19)）, WONPIL（32 (in 2026; 31 before April 28)）, DOWOON（31 (in 2026; 30 before August 25)）. The oldest is SUNGJIN, and the youngest is DOWOON.
View this page in Chinese → Back to group index Birthday calendar