On a digital clock there are palindromes in a 12 hour period. (A palindrome is a number that reads the same forwards or backwards. For example: 77, 131 15351.)
The palindromes in a 12 hour period on a digital clock are: 00:00, 01:10, 02:20, 03:30, 04:40, 05:50, 06:60, 11:11, 12:21, 13:31, 14:41, 15:51, 20:02, 21:12, 22:22, 23:32, 24:42.
