After some talk about birthdays and things I have come up with a way to work out when you will be 10000 days old. I am going to be having a 10000 day old birthday party on the 22nd April!
Calculate your 10000 day birthday with this little script I wrote.
The calculator seems to be wrong. I put in my birthday (23 Oct 1987) and it came up with 3 Oct 2015 as my 10,000 day birthday. But, the number between that date and my birthday is 10208, inclusive.
Disregard last note. Sorry. Just not used to reading dates in DD/MM/YYYY format
The script is still wrong, though. I recommend using Excel if you want to find your 10,000 B-day. Much easier to add 10,000 days to a cell that contains your birthday. For example, if A1 contains your birthday, just make cell A2 =A1 100000. You don’t even have to format the cells, just leave them as General (the default).
Adam,
Strange that my script and Excel give the same result for my 10000 day birthday. I think my script does indeed work. All it does is a bit of Julian date arithmetic followed by a conversion to a Gregorian date.
Still wrong… birthdate 9999 days is actual 10,000th day
Does it take into account leap years?
Yes it does. It uses Julian date calculation to add/subtract the correct number of days before converting that back into the Gregorian calendar.
I just sat and did the math by hand to figure this out (took way too long) and the number I got and the number your calculator gave me matched up. Glad I googled to double check!
get “Date of Birth should be in the format dd/mm/yyyy” message for dates 02/13 through 02/28 regardless of the year I tried. and yes I verified the format. Tried this in chrome and in IE with same results in both browsers. It worked for 02/01 through 02/12, and 03/01.
I can not replicate. Please let me know the full date you are typing into the box. E.g. 26/02/2011 would be the 26th February 2011 and that works (as I just tested it).
one simple question. does it count my date of birth as one of the 10,000 days?
or does it simply add to it therefore telling me when 10,001 days will be?
also, are you a fan of TOOL
It gets the date now and your date of birth, converts both into julian date format (i.e. the number of days since 1st January 4713 BC) and then subtracts the date of birth from the date now. This then returns the number of days old that you are. Therefore:
Born = 1st January 2011, Date = 1st January 2011, Days Old = 0
Born = 1st January 2011, Date = 2nd January 2011, Days Old = 1
It then subtracts the number of days old that you are from 10000 and adds the result to the current julian date.
It then converts the result of that into the gregorian date and displays it.
My 10,000th day to live will be on 11-11-11!
How cool is that?
your script is wrong. it is off by one day because it is counting the day you are born as one day, but you aren’t one day old until the day after, so one day needs to be added to the results of this current script.