Fatima Madrigal from California in the US gave birth to twin babies in different years.
The mom says their birth was a surprise since they arrived two weeks earlier.
Her baby boy, Alfredo, was born first on 31 December 2021 at 11:45, and her baby girl, Aylin, was born on 1 January 2022 at 12 am.
As for how she plans on celebrating their birthdays, Fatima says, for now, the twins will celebrate on the same day.
"I'll explain it to them the best I can, but when they're older, and they want to celebrate their birthdays in different years, it's up to them".
Watch the video above for more.
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