• It's not explained what the input array elements represent
• The input should be an array of pairs
• No random tests
• There're already numerous katas which involve converting time-string to number of minutes and back, and the task itself is a trivial map/filter/reduce which is not novel either

Seriously. The top 2 solutions above of this one is either 1) not readable or 2) not extensible.

Cleanest code.

Best answer.

Thanks.

Umm.

Beautiful.

Poor code structure; should use var templates = [...] and replace; check out most clever solutions.

BEST!!!

Nice; thought the easiest way was via recursion.