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.

How to use the Date Pattern Calculator?

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

21 patterns found for Sunday, September 13, 2015

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

Readable date	Order of date	Grouped as date	Grouped as pattern	Type
Sep 13 at 12:03:19 AM	M-DD H:MI:SS	9-13 0:03:19	9130-0319	Palindrome (reverse)
Sep 13 at 12:09:31 AM	DD-M H:MI:SS	13-9 0:09:31	1390-0931	Palindrome (reverse)
Sep 13 at 1:13:19 AM	M-DD H:MI:SS	9-13 1:13:19	9131-1319	Palindrome (reverse)
Sep 13 at 1:19:31 AM	DD-M H:MI:SS	13-9 1:19:31	1391-1931	Palindrome (reverse)
Sep 13 at 2:23:19 AM	M-DD H:MI:SS	9-13 2:23:19	9132-2319	Palindrome (reverse)
Sep 13 at 2:29:31 AM	DD-M H:MI:SS	13-9 2:29:31	1392-2931	Palindrome (reverse)
Sep 13 at 3:33:19 AM	M-DD H:MI:SS	9-13 3:33:19	9133-3319	Palindrome (reverse)
Sep 13 at 3:39:31 AM	DD-M H:MI:SS	13-9 3:39:31	1393-3931	Palindrome (reverse)
Sep 13 at 4:43:19 AM	M-DD H:MI:SS	9-13 4:43:19	9134-4319	Palindrome (reverse)
Sep 13 at 4:49:31 AM	DD-M H:MI:SS	13-9 4:49:31	1394-4931	Palindrome (reverse)
Sep 13, 2015 at 5:13:19 AM	M-DD-YY H:MI:SS	9-13-15 5:13:19	91315-51319	Palindrome (reverse)
Sep 13, 2015 at 5:13:19 AM	M-DD-YY HH:MI:SS	9-13-15 05:13:19	91315-0-51319	Palindrome (reverse)
Sep 13, 2015 at 5:19:31 AM	DD-M-YY H:MI:SS	13-9-15 5:19:31	13915-51931	Palindrome (reverse)
Sep 13, 2015 at 5:19:31 AM	DD-M-YY HH:MI:SS	13-9-15 05:19:31	13915-0-51931	Palindrome (reverse)
Sep 13 at 5:53:19 AM	M-DD H:MI:SS	9-13 5:53:19	9135-5319	Palindrome (reverse)
Sep 13 at 5:59:31 AM	DD-M H:MI:SS	13-9 5:59:31	1395-5931	Palindrome (reverse)
Sep 13 at 9:31 AM	DD-M H:MI	13-9 9:31	139-931	Palindrome (reverse)
Sep 13, 2015 at 10:23:19 AM	M-DD-YYYY HH:MI:SS	9-13-2015 10:23:19	913201-5-102319	Palindrome (reverse)
Sep 13, 2015 at 3:13:19 PM	M-DD-YY HH:MI:SS	9-13-15 15:13:19	91315-1-51319	Palindrome (reverse)
Sep 13, 2015 at 3:19:31 PM	DD-M-YY HH:MI:SS	13-9-15 15:19:31	13915-1-51931	Palindrome (reverse)
Sep 13, 2015 at 7:51:02 PM	YYYY-M-DD HH:MI:SS	2015-9-13 19:51:02	201591-3-195102	Palindrome (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.