J: Birthday & Age
| Name | J |
|---|---|
| Korean name | 재이 |
| Group / artist | STAYC |
| Birthday | Dec 9, 2004 |
| Age | 21 years old (as of Oct 28, 2026) |
| Next birthday | D-42 · Dec 9, 2026 (Wed) · turns 22 |
| Source | Wikidata Q106518625 |
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Members with the same birthday
Choi Min-ho (SHINee) 
Shin Yu-na (ITZY) 
Ni-Ki (ENHYPEN) Idols born on December 9 › · All December birthdays ›
STAYC: upcoming schedules
No upcoming schedules listed.
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Birthdays come from Wikidata and are listed only when the full date is recorded. Current members only; members without a confirmed birthday and virtual idols are not included. Ages are international (full) ages, and dates follow Korea time.