If they are human twins then about 9 months
Shane Twins was born in 1967.
The Otwell Twins was born in 1956.
Topp Twins was born in 1958.
Kalin Twins was born in 1934.
The Armstrong Twins was born in 1930.
It is said the twins were born in 40 BC.It is said the twins were born in 40 BC.It is said the twins were born in 40 BC.It is said the twins were born in 40 BC.It is said the twins were born in 40 BC.It is said the twins were born in 40 BC.It is said the twins were born in 40 BC.It is said the twins were born in 40 BC.It is said the twins were born in 40 BC.
The Armstrong Twins was born in 1930.
Topp Twins was born in 1958.
The Otwell Twins was born in 1956.
McGuire twins was born in 1946.
The Mulgray Twins was born in 1939.
The Borden Twins was born in 1932.
The Blossom Twins was born in 1988.
Kessler Twins was born in 1936.
The Legarde Twins was born in 1930.
Oliver Twins was born in 1969.
The Watson Twins was born in 1975.