A handful of mothers who spent New Year's Eve in labor each gave birth to twins born in 2011 and 2012.
In a weird twist of fate, different birth dates and years where given to each newborn from three different sets of twins, with one born before the midnight, Jan. 1 dividing line, and one born after.
In one case, two fraternal twin boys in Buffalo, New York, came into the world a littler earlier than expected.
Parents Brighid and Thomas Rosputni were at a wedding when Brighid's water broke and the couple rushed to the hospital, according to Examiner.com.
Baby Ronan was born at 11:37 p.m. on Dec. 31, and Rory was born at 12:10 a.m. on Jan. 1. The boys were their county's last and first babies born in 2011 and 2012, respectively.
And although separate birthday parties might be an appeal for the twins as they get older, the family says they plan on holding one party on one day for both sons.
Just a few states over, Stephanie Peterson went into labor on New Year's Eve, weeks before her February due date.
The Minnesota mother gave birth to Baby Beckett at 6:40 p.m. on Dec. 31 and Baby Freya at 12:26 a.m. on Jan. 1, according to CBS Minnesota.
Another pair of twins, these born in Florida, could not have cut it closer: Baby Jenna entered the world at 11:59 p.m. Dec. 31, and her sister Leah, followed right behind her, debuting at midnight on Jan. 1.
"It's a great way to end the previous year and start the new year," father Blake Bear said of the twins' unique arrival while speaking with the Tampa Bay Times.
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