When twins are born, the assumption would be that they are born on the same day, and that’s true for most twins. After all, twins are born just minutes apart. It makes sense to assume that twins would share a birthday.

Every once in awhile, twins end up being born on different days. It’s not like one baby is born and then days later the other baby is born. Instead, it happens that one baby is born just before midnight and the other baby is born just after midnight.

While it is rare for twins to have different birthdays, it is even rarer for twins to be born in different months or even different years, but again, it happens, and it just happened a couple days ago.

Fatima Madrigal and Robert Trujillo are the proud parents of twin babies who are just a couple days old. Their children were born at Natividad Medical Center in Salinas, California, and their daughter, Aylin Yolanda Trujillo has the honor of being the first baby born at the medical center and in all of Monterey County in 2022. She weighs 5 pounds 14 ounces, and her birthday is 1/1/22.

The unusual thing is that Aylin, who was born at midnight, has a different birthday than her twin brother who was born just 15 minutes before her. Her brother, Alfredo Antonio Trujillo, was born on New Year’s Eve making his birthday 12/31/21.

Natividad Medical Center shared a picture of the twins on Twitter announcing the first birthday of the year and the unusual situation where the twins find themselves born on not just separate days but also in separate months and years.

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! pic.twitter.com/Lm5hkOpNBo

— Natividad (@NMCInspires) January 2, 2022

In a press release from the medical center, the twins’ mom expressed her feelings about her twins’ birthdays. She explained, “It’s crazy to me that they are twins and have different birthdays,” she added. “I was surprised and happy that she arrived at midnight.”

The mom’s doctor also expressed her feelings about the twins having separate birthdays. Dr. Ana Abril Arias explained, “This was definitely one of the most memorable deliveries of my career.” She went on to say, “It was an absolute pleasure to help these little ones arrive here safely in 2021 and 2022.” She summed up her feelings by stating, “What an amazing way to start the New Year!”

There are approximately 120,000 sets of twins born in the United States every year. That makes up just 3% of all births.