Twins were born in different decades after their mum went into labour on New Year's Eve.
Dawn Gilliam gave birth to Joslyn at 11.37pm on 31 December 2019 and then little Jaxon at 12.07am on 1 January 2020.
The twins, who were born at Ascension St. Vincent Hospital in Carmel, Indiana, weren't due until 19 February but arrived early after their mum visited the hospital on New Year's Even concerned about their lack of movement.
Speaking to the Indianapolis Star, Gilliam said: "They were like, 'You might have to deliver today.'" And they were almost right, with one being born that very day and the other following suit the next day (albeit half an hour apart).
Proud mum Gilliam told the news outlet she knew Joslyn would be born first, explaining: "She's been in position for most of the pregnancy.
"Of course, he was breech. So, it took a while for him to come."
Little Joslyn weighed just 4lbs 11oz while brother Jaxon weighed 4lbs 5oz - both babies are currently on feeding tubes but are doing well and are expected to be sent home soon.
Dad Jason Tello added: "Earlier, we talked about [how] it would be great to have them born on different dates.
"But here we are with this surprise - different dates, different years. That was definitely interesting for us for sure."
Gilliam told WBNS: "I guess it doesn't click that, 'Wow! We had two babies.' I'm like, 'Wow! There's actually two!'"
Tello told reporters: "We're still kind of overwhelmed. We're kind of speechless still.
"It's been a ride, that's for sure. It's been a good ride."
While Joslyn and Jaxon went just beyond the 17-minute average between twins being born, a couple in Germany welcomed their little girls more than three months apart.
The girls were born a whopping 97 days apart and were hailed a 'medical sensation' in their home country of Germany.
Mum Oxana gave birth to little Liana prematurely at 26 weeks on 17 November 2018; the tiny baby weighed just 2lbs.
Liana had a long wait until she was reunited with her sister, as Leonie came along four days after Oxana's original due date on 22 February 2019.
After first giving birth to Liana, Oxana's contractions stopped so doctors decided to try and let the mum continue with her pregnancy and go full-term, which she managed.
Maternity chief from Holweide Hospital in Cologne Dr Uwe Schellenberger said: "It's also a rare case for our maternity clinic, but it was not the first time that twins were born on different days at the Holweide Hospital.
"But the time difference of 97 days is unique for us and also special worldwide."
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Topics: US News