Some claim it as good luck, but for Tauranga baby Summer Pakulski, the date of December 12, 2012, will be the day she was born.
The little girl was born at 3.12pm on Wednesday - the last day in more than 80 years where the date repeats itself.
Mum Meghann Grawburg said Summer was due on December 19 "so she was a bit early, but it's a pretty cool date".
"It was special for me and my husband. We got married on 8/8/08," she said.
Ms Grawburg said she and husband Jacek Pakulski did not deliberately choose their wedding date for any auspicious reason other than between July and August, the eighth sounded best.
Looking back on it now, the Mount Maunganui mum said she liked the idea of good luck falling on repeated dates. Her birthday is October 10.
"Maybe this is a thing in my family."
The date attracted plenty of interest from couples planning their marriage, with wedding venues reporting strong bookings for the day despite it being midweek.
Many couples believed the triple date was good luck.
Online bloggers suggest December 12, 2012 marked the end of the world, while others suggested this date was December 21, 2012.
Baby Summer, sister to 2-year-old Finn, was one of eight babies born at Tauranga Hospital on the day. Skye Mackinnon was born at 9.49pm. Mum Kere Brown was getting into her car after an anti-natal course at the hospital when her waters broke.
Reflecting yesterday on the timing of the birth, Ms Brown said there was something special about the date.
"One of my sons said there was something about the 12/12/12. He thought it was cool, and I think it's a cool day."