THE families of Matilda Grace Hamilton and Laken Cooper Nancarrow won't have any problems remembering their birthdays.
Both babies were born at Biloela Hospital on December 12, 2012.
Matilda's parents Micky Hamilton and Alli Struber, from Banana, said they didn't expect their daughter to be born on the unique date.
"She was due today but we didn't expect her to be born on the actual date," Alli said.
"It is just such a blessing to be born on such a unique and special date," Micky said.
"Especially because there won't be another date like that in our lifetime."
Matilda is the fourth child for Micky and third for Alli and a little sister for Clayton, 6, Sophie, 4, Chemal, 9, Troy, 8 and Lily, 6.
Matilda was born at 9.20am weighing 6lb and 9oz.
Laken's parents Kelly and Mark Nancarrow, from Biloela, said his birthday was more unexpected.
"He was actually due on the sixth so it was a bit unexpected," Kelly said.
Big sister Zali said the date was a big hit with her friends.
"There were all these Facebook status updates about the 12/12/12. Everyone thought it was pretty cool," she said.
Laken was born at 6.40pm weighing 3040g and is a little brother for Chyvele, 16, Zali, 14 and Ashlyn, 3.