I was born just 10 minutes apart from my twin brother, but I celebrated my birthday 11 days after my twin brother every year.

When was I born ?


2 Answers 2


You and your twin were born:

4th October 1582 and 15th October 1582, either side of the introduction of the Gregorian calendar.

  • 4
    $\begingroup$ They must be old. $\endgroup$
    – Mithical
    Commented Aug 19, 2016 at 8:27
  • 5
    $\begingroup$ I'll admit I often have problems counting, but is this not 11 days rather than 10? $\endgroup$
    – Will
    Commented Aug 19, 2016 at 8:34
  • 1
    $\begingroup$ @Mithrandir If you want them to be potentially still alive, they could be 14 days apart and born in Greece on Feb 14 and March 1 1923, respectively. $\endgroup$ Commented Aug 19, 2016 at 9:53
  • $\begingroup$ I had been thinking of Russia but the countries that switched in the 20th century had to drop 13 days (as the difference between the two calendars increases by roughly a day for each successive century). $\endgroup$ Commented Aug 19, 2016 at 13:15

Your twin was born

at 11.55 pm on 2 Sep 1752

and you were born

at 12.05am on 14 Sep 1752 in England,when the Gregorian calendar was introduced there.

Just ten minutes apart,but 11 days and 10 minutes later you actually celebrate


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