What is the 1 rarest birthday?

The single rarest birthday is February 29 (Leap Day) because it occurs only once every four years, giving it a 1 in 1,461 chance, but in the U.S., major holidays like Christmas Day (Dec 25) and New Year's Day (Jan 1) are consistently the least common, due to fewer scheduled inductions/C-sections on holidays.

What are the top 10 rarest birthdays?

The rarest birthdays are clustered around major holidays and include February 29 (Leap Day), followed by December 25 (Christmas Day), January 1 (New Year's Day), December 24 (Christmas Eve), and July 4 (Independence Day), with other rare dates often falling in late November and early January, due to hospital scheduling and cultural preferences to avoid scheduling births on holidays. 

Is there a diamond birthday?

Yes, a "diamond birthday" is a special milestone, celebrated either when you turn 60, symbolizing wisdom and lasting value, or when your age matches the last two digits of your birth year (e.g., turning 75 if born in '75), often called a platinum birthday too, signifying something rare and brilliant, perfect for a sparkling, gem-themed party. 

What is the 99% birthday problem?

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.

What is the #1 most common birthday?

The most popular birthday in the U.S. is consistently September 9th, with many other dates in early-to-mid September also topping the list, a trend linked to conceptions around the December holidays; holidays like Christmas and New Year's, and leap day February 29th, are among the least common birthdays.
 

Comparison: How Rare is Your Birthday?

What is the unhealthiest birth month?

Mitral valve disorder shows a clear bimodal seasonal pattern-a major disease risk peak among persons born in March and a smaller disease risk peak among those born in August. Atrial fibrillation peaks among persons born in March, with a trough between September and November.

Which birthdate is powerful?

For example, those born on the 1st, 10th, 19th, or 28th of any month carry the energy of the number 1, which is ruled by the Sun. These individuals are often seen as independent, ambitious, and charismatic—natural leaders who are destined to make a mark on the world.

Whose birthday is rare?

The ten least common birthdays are February 29, December 25, January 1, July 4, January 2, December 26, November 27, November 23, and November 25. In 2023, April was the least common month for birth. But overall, February is the least common month for children to be born.

What is the 23 birthday theory?

The Birthday Paradox is a mathematical problem which illustrates the (perhaps counter intuitive) probability of two people sharing the same birthday. This paradox states that in a room of just 23 people, there is a 50% chance that two of them will share the same birthday.

What is the golden birthday number?

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. It is a tradition that started in the 50's.

What is a diamond 💎 meaning?

The word Diamond comes from the Greek word Adamas, which means indestructible. It is the only gem known to man that is made of a single element, Carbon, besides graphite.

What is an Emerald birthday?

An Emerald Birthday is a special, rare birthday when the age you turn matches the number of your birth month (e.g., turning 5 if born in May, or 11 if born in November), making it a unique, once-in-a-lifetime celebration for those born in months 1 through 12, often associated with the May birthstone. It's distinct from the May birthstone itself, though both share the "emerald" theme, symbolizing renewal and beauty, notes The US Sun and Rarete Jewelry. 

Is a 60 year old diamond?

A diamond birthday is celebrated at 60 years old or when the birth year matches the age. The symbolism for this birthday is strength, resilience, and wisdom.

Which month is very rare?

The rarest birth month is February, primarily because it's the shortest month (28 or 29 days), but also due to fewer conceptions in warmer months (May) and fewer scheduled inductions around holidays, though rare individual birthdays often fall on holidays like Christmas or New Year's Day. April is often the second-rarest month for births. 

What is the 13th rarest birthday?

The 13 th is also a relatively rare birthday, with January, February, March, April, May, and November 13 th all placing among the 50 least common birthdays. Superstition around Friday the 13 th appears to be to blame here.

Do twins share a birthday often?

Twins are defined as children produced in the same pregnancy. 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.

Is there a reverse golden birthday?

Platinum birthday: Think of this as the reverse of your golden birthday.

What is the 2 most rarest birthday?

After Leap Day (Feb 29), the second rarest birthday in the U.S. is generally December 25 (Christmas Day), followed closely by January 1 (New Year's Day), due to fewer scheduled C-sections and inductions on major holidays and parents preferring not to have birthdays overshadowed by holidays.
 

How many people in a room to share a birthday 99%?

LET'S PLAY A GAME: In a room of 23 people there's a 50% chance of two individuals having the same birthday (month and day only and not a leap year). The chance increases to 99.9% if there are 70 people in the room.

What are the 100 rarest birthdays?

The rarest birthdays are February 29 (Leap Day), followed by holidays like Christmas (Dec. 25), New Year's Day (Jan. 1), and Christmas Eve (Dec. 24), with many late November dates near Thanksgiving also being rare due to fewer scheduled C-sections and parental choices. While a full Top 100 list isn't readily available, the trend shows holidays and days around them are less common, with dates like July 4th, Jan 2nd, and late November dates (23rd-28th) also appearing on most rare lists.
 

What is a diamond birthday?

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.

What is the golden date of birth?

Your golden birthday is the special day when you turn the same age as the day of the month you were born, like turning 15 on the 15th or 28 on the 28th, a fun milestone often celebrated with gold-themed parties, sometimes called a Champagne Birthday. 

Which birth date is rich?

August. August babies, especially those born with a Leo Sun sign (between July 23rd to August 22nd), are another group that may be destined for substantial wealth.

What are the big 3 zodiacs?

Together, your Sun, Moon, and Rising signs are called your “Big Three.” Each of these signs plays a significant role in your birth chart, and each describes a different part of your personality and life story.

Is 7 lucky or 9?

The number 7 is often considered lucky, and it has a definite mystique, perhaps because it is a prime number—that is, it cannot be obtained by multiplying two smaller numbers together.