What year was I born if I'm 45?
1980 or 1981
Anyone who is 45 today, Friday, November 13, 2026, was born between Friday, November 14, 1980 and Friday, November 13, 1981. The boundary falls in the middle of the year, so the answer spans two of them.
- Earliest birth date
- November 14, 1980
- Latest birth date
- November 13, 1981
- Birth years
- 1980 or 1981
- Age today
- 45
Which year, exactly
Someone born on Friday, November 13, 1981 turns 45 today. Someone born a day later, on Saturday, November 14, 1981, is still 44 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 45 today, a date of birth has to fall on or after Friday, November 14, 1980 and on or before Friday, November 13, 1981.
There is no 29 February in that window, so everyone who is 45 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 1980from November 14, 1980
- Born in 1981up to November 13, 1981