Feb. 29 is Leap Day, the extra day tacked onto the calendar once every four years as a corrective measure to accommodate the time it takes the Earth to complete a single revolution around the sun. That means leaplings born Saturday will only technically get to celebrate their birthdays every four years.
RELATED: How leap years and days work and why we have them
Advocate Christ Medical Center (Oak Lawn)
Name of Mom and Dad: Maria and Jose Jimenez
Name of Baby: Moises Alberto
Gender: Boy
Weight: 10 pounds
Height/Length: 22 inches
Time of Birth: 5:04 a.m.
Town/City/Neighborhood where the couple lives: Whiting
Any siblings? Three siblings
Advocate Lutheran General Hospital (Park Ridge)
Name of Mom and Dad: Karolina and Adam Mroczko
Name of Baby: Nel
Gender: Girl
Weight: 3.565 kilograms
Height/Length: 48.9 centimeters
Time of Birth: 1:39 a.m.
Town/City/Neighborhood where the couple lives: Chicago
Any siblings? None
Advocate Sherman Hospital (Elgin)
Name of Mom and Dad: Deyse and Luis Galvan
Name of Baby: Sophia
Gender: Girl
Weight: 8 pounds, 13 ounces
Height/Length: 20.5 inches
Time of Birth: 12:31 a.m.
Town/City/Neighborhood where the couple lives: Elgin
Any siblings? Three siblings
Name of Mom and Dad: Alexis Hurt and Semaj Collier
Name of Baby: Kyree
Gender: Boy
Weight: 6 pounds, 2 ounces
Height/Length: 14.5 inches
Time of Birth: 12:06 a.m.
Town/City/Neighborhood where the couple lives: Elgin
Any siblings? None