Same birthday (rephrased)

[marcgj]

What are the odds of two children having the same birthday? My son and daughter were born on the same day but three years apart. I don't think it's as simple as 1 in 365.

Thanks for earlier replies.

[saxy_jag]

Not sure of the odds, but here's a coincidence:

I have sat next to the same guy at concert band for three or four years. Last year, I mentioned that I wouldn't be at practice one week because it was my birthday and I was going out. He said, "Me too." We discovered that not only do we share a birthday, we're exactly the same age (plus, of course, we play the same instrument).

However, we're not long lost twins, because I was born at a hospital in Leicester, and he was born at his family home in Nottinghamshire.

[chazza]

Hi
It is 1 in 365. The second child being born could be on any day of the year, so it is a 1 in 365 chance of being born on the same day.

If however you want to work out the likelihood of the two children being born on a specified date (specified before the birth of the first child) it would be 1 in 133225 (365*365)

[wee-janine]

I know it is not siblings but my mother-in-law and i have the same birthbay,my husband's gran and my brother had the same b'day, my father-in-law, my aunt and other aunt's brother-in-law all have the same b'day. None of the are in the same year. Also guy I used to work with and his sister same b'day; three years apart.

[makemesmile]

My nieces share the same birthday - born two years apart.

[mifta]

My husband and his brother share the same birthday, 7 years apart.

[morbidstorm]

Their birthdays being on the same day simply means you concieved on the same day each time - work out what day is exactly 40 weeks previous to their birthday. You'll probably find it's an anniversary or special occasion!!

My youngest child turned out to be concieved on our wedding day, when we worked it out!!

[makemesmile]

Blimey morbidstorm, I barely had time to thank everyone for coming - let alone my husband!

[l15a27]

id just like to ask what these chances are then of this my sister was born on 12th feb 1966 i was then born on 12th feb 1975 then my other sister had my nephew on 12th feb 1995 in 1996 it was my sisters 30th my 21st and my nephews 1st all on the same day what are the odds on that??????????

[SteveSxx]

My sister and her eldest daughter share a birthday and her other child was born the next day - I believe that planning comes into it more than coincidence

[Pam29]

It seems to happen more than we think. My sister in la has two children both born on the same day 3 years apart. On the other side of my family, my cousin also shares her birthday with her sister.

[Gilly]

A lady I worked with 30 years ago, had 2 boys- 3 years apart and both born on Christmas Day

[handygran]

Our friends daughters were born 3years apart on 6th June.

[ljcunningham]

I have friends (sisters) born on the same day 4 years apart.
Also my niece and nephew to 2 different sisters were born on 9th and 10th September but in different countries - they were only born about 2 hrs apart but with the time difference they would have been born on the same day (one year apart).
My mum and her grandson were born on the same day too.
PS I was born on the same day as my sister - but we are twins - guess that doesn't count!
Maybe it's something to do with women's bio rhythms, or as they say the time of year.

[kaylamay]

my brother and sister were born on the same day 2 years apart. my mother and her youngest sister and my niece all share the same birthday too.
mikala

[kazdek]

my husbands two brothers were born on the same day , a year apart