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Palindrome dates

(3 votes, average: 2.00 out of 5)

December 2, 2007 by Ankur 4 Comments

This year on October 2, 2001, the date in MMDDYYYY format will be a palindrome (same forwards as backwards).
10/02/2001
When was the last date that this occurred on?See Solution : Palindrome datesHide Solution

One year can have only one palindrome as the year fixes the month and date too, so the year has to be less than 2001 since we already have the palindrome for 10/02. It can’t be any year in 1900 because that would result in a day of 91, same for 1800 down to 1400. it could be a year in 1300 because that would be the 31st day. So whats the latest year in 1300 that would make a month? When i first solved it, 12th month came to my mind as we have to find the latest date, so i thought it would be 1321. But we have to keep in mind that we want the maximum year in 1300 century with a valid date, so lets think about 1390 that will give the date as 09/31, is this a valid date… ? No, because September has on 30 days, so last will be the 31st August. Which means the correct date would be 08/31/1380.

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Comments

  1. Alan says

    March 26, 2022 at 2:27 pm

    its MMDDYYYY…. so he is correct.

    Reply
  2. s.kiran says

    June 21, 2017 at 10:41 pm

    11/02/2011

    Reply
  3. Ranjitha Jain says

    July 15, 2015 at 3:29 pm

    29/31/1392

    Reply
    • VaraKalyan M says

      September 6, 2015 at 2:56 am

      from where u got the 31 months 🙂

      Reply

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