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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.

For more options including pattern type, date order and to include time select the Advanced options checkbox.

Select period to look for patterns in


29 patterns found for Saturday, January 19, 2019

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

Readable dateOrder of dateGrouped as dateGrouped as patternType
Jan 19 at 12:09:11 amM-DD H:MI:SS1-19 0:09:111190-0911Palindrome (reverse)
Jan 19 at 12:19:10 amDD-M H:MI:SS19-1 0:19:101910-1910Repeats 4 x 2
Jan 19, 2019 at 1:02 amYYYY-M-DD H:MI2019-1-19 1:0220191-19102Palindrome (reverse)
Jan 19, 2019 at 1 amYY-MM-DD HH19-01-19 011901-1901Repeats 4 x 2
Jan 19, 2019 at 1 amDD-M-YY H19-1-19 1191-191Repeats 3 x 2
Jan 19, 2019 at 1 amDD-M-YY H19-1-19 1191-191Palindrome (reverse)
Jan 19, 2019 at 1:19:01 amYY-MM-DD HH:MI:SS19-01-19 01:19:011901-1901-1901Repeats 4 x 3
Jan 19 at 1:19:11 amM-DD H:MI:SS1-19 1:19:111191-1911Palindrome (reverse)
Jan 19 at 1:19:11 amDD-M H:MI:SS19-1 1:19:111911-1911Repeats 4 x 2
Jan 19 at 2:19:12 amDD-M H:MI:SS19-1 2:19:121912-1912Repeats 4 x 2
Jan 19 at 2:29:11 amM-DD H:MI:SS1-19 2:29:111192-2911Palindrome (reverse)
Jan 19 at 3:19:13 amDD-M H:MI:SS19-1 3:19:131913-1913Repeats 4 x 2
Jan 19 at 3:39:11 amM-DD H:MI:SS1-19 3:39:111193-3911Palindrome (reverse)
Jan 19 at 4:19:14 amDD-M H:MI:SS19-1 4:19:141914-1914Repeats 4 x 2
Jan 19 at 4:49:11 amM-DD H:MI:SS1-19 4:49:111194-4911Palindrome (reverse)
Jan 19 at 5:19:15 amDD-M H:MI:SS19-1 5:19:151915-1915Repeats 4 x 2
Jan 19 at 5:59:11 amM-DD H:MI:SS1-19 5:59:111195-5911Palindrome (reverse)
Jan 19 at 6:19:16 amDD-M H:MI:SS19-1 6:19:161916-1916Repeats 4 x 2
Jan 19 at 7:19:17 amDD-M H:MI:SS19-1 7:19:171917-1917Repeats 4 x 2
Jan 19 at 8:19:18 amDD-M H:MI:SS19-1 8:19:181918-1918Repeats 4 x 2
Jan 19 at 9:11 amM-DD H:MI1-19 9:11119-911Palindrome (reverse)
Jan 19, 2019 at 9:19:11 amM-DD-YY H:MI:SS1-19-19 9:19:1111919-91911Palindrome (reverse)
Jan 19, 2019 at 9:19:11 amM-DD-YY HH:MI:SS1-19-19 09:19:1111919-0-91911Palindrome (reverse)
Jan 19 at 9:19 amDD-M H:MI19-1 9:1919-19-19Repeats 2 x 3
Jan 19 at 9 amDD-M H19-1 919-19Repeats 2 x 2
Jan 19 at 9:19:19 amDD-M H:MI:SS19-1 9:19:1919-19-19-19Repeats 2 x 4
Jan 19, 2019 at 10:29:11 amM-DD-YYYY HH:MI:SS1-19-2019 10:29:11119201-9-102911Palindrome (reverse)
Jan 19, 2019 at 7:19:11 pmM-DD-YY HH:MI:SS1-19-19 19:19:1111919-1-91911Palindrome (reverse)
Jan 19DD-M19-11-9-1Palindrome (reverse)

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 (palindrome) or repeatable date.

Special Date Combinations

  1. Palindrome Day
  2. The 823 Years Myth
  3. 12/12/12
  4. 11/11/11
  5. 10/10/10
  6. Date Pattern Calculator

Special Calendar Dates

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