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Date Pattern Calculator

Want to know if the digits in a date are sequential, repetitive, or can be read the same way forwards and backwards? Use the Date Pattern Calculator to find out unique and interesting mathematical patterns in different date formats.

Click on Advanced options to select a different pattern type, change the date order, include the time, and more.

Select search parameters:


15 patterns found for Wednesday, December 12, 2012

Click on any row to see an animation of the date pattern.

Readable DateOrder of DateGrouped as DateGrouped as PatternType
Dec 12 at 12:21:21 amMM-DD HH:MI:SS12-12 00:21:2112120-02121Palindrome (reverse)
Dec 12, 2012 at 1:21:02 amYYYY-MM-DD H:MI:SS2012-12-12 1:21:02201212-1-212102Palindrome (reverse)
Dec 12 at 11:21:21 amMM-DD HH:MI:SS12-12 11:21:2112121-12121Repeats 5 x 2
Dec 12 at 11:21:21 amMM-DD HH:MI:SS12-12 11:21:2112121-12121Palindrome (reverse)
Dec 12, 2012 at 12 pmYY-MM-DD HH12-12-12 1212-12-12-12Repeats 2 x 4
Dec 12 at 12:12 pmMM-DD HH:MI12-12 12:1212-12-12-12Repeats 2 x 4
Dec 12, 2012 at 12:12 pmYY-MM-DD HH:MI12-12-12 12:1212-12-12-12-12Repeats 2 x 5
Dec 12 at 12:12:12 pmMM-DD HH:MI:SS12-12 12:12:1212-12-12-12-12Repeats 2 x 5
Dec 12, 2012 at 12:12:12 pmYY-MM-DD HH:MI:SS12-12-12 12:12:1212-12-12-12-12-12Repeats 2 x 6
Dec 12 at 12 pmMM-DD HH12-12 1212-12-12Repeats 2 x 3
Dec 12 at 9:21 pmMM-DD HH:MI12-12 21:211212-2121Palindrome (reverse)
Dec 12, 2012 at 9:21:21 pmYY-MM-DD HH:MI:SS12-12-12 21:21:21121212-212121Palindrome (reverse)
Dec 12 at 10:21:21 pmMM-DD HH:MI:SS12-12 22:21:2112122-22121Palindrome (reverse)
Dec 12, 2012YY-MM-DD12-12-1212-12-12Repeats 2 x 3
Dec 12MM-DD12-1212-12Repeats 2 x 2

The results table highlights the dates that are most interesting and easiest to read in green. The type of pattern shows whether the date is a reversible date (palindrome) or repeatable date.

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