Twins, but born in different years, days and months. It is a unique case in the world.

Due to an unusual event, a set of California twins recently celebrated their birthdays on separate days, months, and years.

Fatima Madrigal and Robert Trujillo of Greenfield welcomed their son Alfredo into the world on New Year’s Eve at 11:45 p.m. local time on Friday evening.

 

On New Year’s Day, the couple welcomed Alfredo’s twin sister, Aylin, just 15 minutes after the clock struck midnight.

Aylin weighed 5 lbs. 14 oz. when she was born, while big brother Alfredo weighed 6 lbs. 1 oz.

 

Madrigal shared her sentiments about her newborn children’s distinct birthdays in a press release acquired by PEOPLE from the Natividad Medical Center.

 

She said, “It’s odd to me that they’re twins with different birthdays.” “She arrived at midnight, which astonished and delighted me.”

 

“This was probably one of the most remarkable deliveries of my career,” said Dr. Ana Abril Arias, a family doctor at the Natividad Medical Group.

“It was an utter joy to assist these tiny ones in securely arriving here in 2021 and 2022,” she said. “What a fantastic way to ring in the New Year!”

 

The Centers for Disease Control and Prevention (CDC) estimates that 120,000 twin births occur in the United States each year. According to the organization, births account for a little over 3% of all births.

 

Alfredo and Aylin are now joined by their three elder siblings, two girls, and one boy. Madrigal said her oldest son is overjoyed to have a sibling, and the rest of the family is looking forward to meeting the newcomers.