What year was I born if I'm 9?
2016 or 2017
Anyone who is 9 today, Thursday, September 24, 2026, was born between Sunday, September 25, 2016 and Sunday, September 24, 2017. The boundary falls in the middle of the year, so the answer spans two of them.
- Earliest birth date
- September 25, 2016
- Latest birth date
- September 24, 2017
- Birth years
- 2016 or 2017
- Age today
- 9
Which year, exactly
Someone born on Sunday, September 24, 2017 turns 9 today. Someone born a day later, on Monday, September 25, 2017, is still 8 until tomorrow. That is why “what year” has two answers rather than one, and why a birth date rather than a year is what settles it.
Read the other way round: to be exactly 9 today, a date of birth has to fall on or after Sunday, September 25, 2016 and on or before Sunday, September 24, 2017.
There is no 29 February in that window, so everyone who is 9 today has had a birthday every year since they were born. Twenty-five of the hundred ages on this site do span a leap day; this is not one of them.
The two candidate years
- Born in 2016from September 25, 2016
- Born in 2017up to September 24, 2017