TWINS born just 15 minutes apart ended up having separate birthdays in different years — an event that has around a one in 2 million chance of happening.

Fatima Madrigal and Robert Trujillo welcomed their son Alfredo Antonio Trujillo at a medical center in California, the U.S. at 11:45 p.m. on New Year’s Eve.

But as the clock struck midnight, his twin sister Aylin Yolanda Trujillo was born making her birthday New Year’s Day.

Aylin weighed five pounds 14 ounces (2.33 kilograms) and was the first baby born at Natividad Medical Center in Monterey County in 2022.

Madrigal said: “It’s crazy to me that they are twins and have different birthdays.

“I was surprised and happy that she arrived at midnight.”

Aylin’s older brother weighed six pounds one ounce.

The fraternal twins join three older siblings, two girls and a boy, with Madrigal saying the family could not wait to meet them.

Across the U.S., around 120,000 twins are born every year, making up just 3 percent of all births.

However, twins born with different birthdays are rare.

Family doctor at the medical center, Dr. Ana Abril Arias, called the twins’ birth “one of the most memorable” of her career.

“It was an absolute pleasure to help these little ones arrive here safely in 2021 and 2022. What an amazing way to start the new year,” she said.

(SD-Agencies)