29
From 1990 to January 1, 2010 you would be almost 20 years old. Even if you were born on February 29.
If the person's birthday is between 1 January and 18 February (today) then they are 48. If their birthday is between 19 February and 31 December then they are 47.
If your birthday is between 1 January and 17 February (today) then you were born in 1974. If your birthday is between 18 February and 31 December then you were born in 1973.
1 Jan 1981 = 1 1 Jan 2001 = 21 1 Jan 2018 = 38
Assuming February 1 1981 29 years, 10 months, 9 days
Luis Lamá was born on February 1, 1981.
Graeme Smith was born on February 1, 1981.
Rob Austin was born on February 1, 1981.
His birthday is February 1, 1981. Making him 31.
Antonina Klimenko was born on February 1, 1981, in USSR.
Luis Lamá is 30 years old (birthdate: February 1, 1981).
Graeme Smith is 30 years old (birthdate: February 1, 1981).
Rob Austin is 30 years old (birthdate: February 1, 1981).
Luis Lamá was born on February 1, 1981.
Graeme Smith was born on February 1, 1981.
Rob Austin was born on February 1, 1981.