   # On a 12-hour digital clock, what is the smallest interval between two times that are palindromic?

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On a 12-hour digital clock, what is the smallest interval between two times that are palindromic (can be read forwards and backwards as the same number)? posted Sep 1, 2016

I think it must be the palindrome times 9:59 and 10:01 for which there is the least time gap which is 2 minutes. All other palindrome times within 12 hr format are atleast 10-11 minutes apart. answer Sep 5, 2016

2 minutes (duration between 9:59 and 10:01) answer Oct 4, 2017

Similar Puzzles

On a regular 12-hour digital clock how many times would the same three digits in a row be displayed (e.g. 1:11,11:12,12:22) in one day?

Time 12:21 is a palindrome as it reads the same forwards or backwards.
What is the shortest interval between two palindromic times?
Example => 11:11 and 12:21 has interval of 1 hr 10 minutes.

+1 vote

I noticed that in my big wall clock, there is a time when the minute and hour clock are exactly between one and two. Also I notice both hands lie on top of each other.

What is the time I am talking about ?