The rarest birthday is February 29 (Leap Day), occurring only every four years, but among the 365 annual days, Christmas Day (December 25) is consistently the least common, followed by other major holidays like New Year's Day (January 1) and Boxing Day (December 26), due to fewer planned births on holidays.
Least Popular Birthdays
Your diamond birthday — also known as a platinum birthday — is when your age matches the last two digits of your birth year. For example, if you were born in 2010, your diamond birthday is when you turn 10 years old. If you were born in 1981, your diamond birthday is when you turn 81 years old.
The answer in probability is quite surprising: in a group of at least 23 randomly chosen people, the probability that some pair of them having the same birthday is more than 50%. For 57 or more people, the probability reaches more than 99%. And of course, the probability reaches 100% if there are 367 or more people.
There are 366 possible days to have a birthday, which means the chance of any person having their birthday on any particular day is around 1/366. If you've only surveyed 30 people, it might seem like you've got a 30/366 chance of getting two people having the same birthday, which would be less than a 10% chance.
The #1 rarest birthday date is February 29. You have only a 1 in roughly 1,460 chance of being born on this date.
🤭 Today, September 9th, is the most popular day to be born––likely because 9 months prior falls in mid- December when holiday spirits are high. So, if your birthday happens to be today, you're not alone! And, of course, we wish you a very happy birthday 🥳
Example: For a March 20 birthday, celebrate when you turn 40. Triple golden birthday: Same math applies here as with a double golden birthday. Just multiply your birthdate by three and you'll know when it's triple golden birthday time.
Not all birthdays are created equal… in fact, for most countries in the north temperate zone, more people are born in summer (May – August) than in winter (October – January).
What is a golden birthday? Your golden birthday is the year you turn the same age as your birthday. For example, turning 25 on the 25th, or 31 on the 31st. If you've ever wondered where the tradition comes from, you're not alone.
golden jubilee: 50th anniversary. diamond jubilee: 60th anniversary (or 75th anniversary) platinum jubilee: 70th anniversary.
Diamond is the gemstone for those who are born under Virgo and Libra as it bestows good luck and prosperity. Other zodiac signs can wear the diamond at certain times and under certain conditions. For example, Capricorn men and women as well as Aquarians can wear the diamond along with a Blue Sapphire.
Because it has far fewer days than any other month, February is the least common birth month. In 2023, only 271,000 babies were born, according to the CDC. April, with only 30 dates, is often the second least common, followed by December; in 2023, April had 279,000 births while December had 297,000.
Usually, they are delivered only a few minutes or hours apart. But they can have different birthdays. This most commonly happens when labor and delivery begins before midnight on one day and ends after the clock changes to the next day.
May babies have relatively rare birthdays.
Only one May birthdate cracks the top 100 popular birthdays (May 23rd lands in 89th place). Meanwhile six May birthdays fall in the bottom 50 (the 4th, 11th, 13th, 26th, 27th, and 31st).
Across many nations, the rarest birthdays often fall on major holidays, when fewer births— especially planned ones-are scheduled. Dates like December 25 (Christmas Day), January 1 (New Year's Day), and December 24 consistently rank among the least common.
Also known as a champagne birthday, a golden birthday is a once-in-a-lifetime event. The term refers to the birthday when your age matches the day you were born. For example, if your birthdate is the 28th of the month, your golden birthday would be your 28th birthday.
Platinum birthday: Think of this as the reverse of your golden birthday. It's the birthday that corresponds to the date you were born, only inverted. Example: Your birthday is June 24, so your platinum birthday is held when you turn 42.
While they are not a legal adult, typically, when they turn 16 is when many people learn to drive, get jobs, and assume other adult responsibilities. For many, the 16th birthday celebrates adulthood and marks the end of a childhood.
9. Here are some of the notable people celebrating birthdays today, including Carole King, Jason George, Joe Pesci, Judith Light, Mia Farrow, Michael B.
The September peak persists for both genders but something else that's interesting pops out: there are consistently more boys being born than girls.
The 4th, 7th, 8th, 22nd, and 17th are believed to be ill-fated by some. Additionally, the superstition around Friday the 13th can add to the sense of caution for those born in October.
Diamond Birthday: Traditionally celebrated at 60 or 75 years old, this milestone symbolizes the enduring wisdom, strength, and brilliance accumulated over a lifetime. Just like a diamond, a life lived to this age is precious, resilient, and multifaceted, reflecting a myriad of experiences and a lasting legacy.
Astrology suggests birth months influence luck, drawing opportunities and positive events. Individuals born in March, May, June, August, October, and December are highlighted for inherent optimism, cosmic backing, or karmic benefits.