What year was I born if I'm 36?
1989 or 1990
Anyone who is 36 today, Thursday, September 24, 2026, was born between Monday, September 25, 1989 and Monday, September 24, 1990. The boundary falls in the middle of the year, so the answer spans two of them.
- Earliest birth date
- September 25, 1989
- Latest birth date
- September 24, 1990
- Birth years
- 1989 or 1990
- Age today
- 36
Which year, exactly
Someone born on Monday, September 24, 1990 turns 36 today. Someone born a day later, on Tuesday, September 25, 1990, is still 35 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 36 today, a date of birth has to fall on or after Monday, September 25, 1989 and on or before Monday, September 24, 1990.
There is no 29 February in that window, so everyone who is 36 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 1989from September 25, 1989
- Born in 1990up to September 24, 1990