Member ages
TIOT Member Ages and Birthdays
TIOT member ages and birthdays ranked oldest to youngest, from Kim Min Seoung at age 22 to Shin Yechan at age 19.
Oldest to youngest
| Rank | Member | Age | Birthday | Position |
|---|---|---|---|---|
| #1 |  Kim Min SeoungMember | 22 | Nov 3, 2003 | Leader |
| #2 |  Kum JunhyeonMember | 22 | Jan 15, 2004 | Main Vocalist |
| #3 |  Hong KeonheeMember | 21 | Nov 15, 2004 | Member |
| #4 |  Choi WoojinMember | 21 | Jan 24, 2005 | Member |
| #5 |  Shin YechanMember | 19 | Apr 9, 2007 | Maknae |