California twins were born just 15 minutes apart but in different years — one born minutes before midnight in 2021 on New Year’s Eve and the other at exactly midnight on New Year’s Day 2022.

Mother Fatima Madrigal gave birth to baby Alfredo Antonio Trujillo at 11:45 p.m. on Saturday night, the Natividad Medical Center announced.

Just 15 minutes later, Alfredo’s sister Aylin Yolanda Trujillo was born exactly at midnight in a new year with a different birthday.

Aylin Yolanda was born 15 minutes after her brother, but in a different year

Aylin weighed in at 5 lbs., 14 oz., while big brother Alfredo weighed 6 lbs., 1 oz.

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

Mother Fatima Madrigal was surprised that her twins won’t share the same birthday.

Dr. Ana Abril Arias, a family doctor at the hospital, called the uniquely timed births “one of the most memorable deliveries of my career.”

“It was an absolute pleasure to help these little ones arrive here safely in 2021 and 2022,” Arias said in the release. “What an amazing way to start the New Year!”

The two babies will return home with their mother and father Robert Trujillo to meet three older siblings – two girls and a boy.

PEOPLE