A woman in California gave birth to twins just 15 minutes apart. However, they were born on 2 different years. This medical case is named as "One in Two Million" occurrence.

Fatima Madrigal welcomed her son Alfredo on New Year's Eve at 11: 45 pm. His twin sister, Aylin was born in 2022, when the clock struck midnight, according to reports.

"It's crazy to me that they are twins and have different birthdays. I was surprised and happy that she arrived at midnight," Madrigal said in a press release, obtained by People.

Natividad Medical Center, the hospital where the siblings were born, shared a photo of the babies and wrote the birth was a '1 in a 2 million chance'

"At midnight, Natividad welcomed Aylin Yolanda Trujillo as the area's first baby of 2022! Her twin, Alfredo Antonio Trujillo, was born 15 minutes earlier at 11:45 pm Friday, Dec. 31, meaning their birthday falls on a different day, month, and year— a 1 in 2 million chance!," Natvidad Medical Center tweeted.

Dr. Ana Abril Arias, the family doctor who delivered the twins, said it was one of the most deliveries of her career.