I would add the following sentence also, like in the original :
"At the beginning of each hour, it sounds off the hour (1–12)"
as I first was under the impression that the clock would act like a 24 hour clock,
resulting in false results.
I had a 12h difference, my solution gave 16:00 while the test expected 08:00.

First kumite, all comments are welcome

I think the author meant : 'should store as hashes'.
and in this time, not MD5 anymore, but salted ones.

Great Kata ! Perfect description page.

I think this is ready to be released ?
Instructions are clear, and good examples.

Found it, I overlooked one important aspect in the description,
and that one triggered this test to fail.

slick way of doing this, I hadn't considered this approach

All test pass, except 1

the date 1880, 3, 1

I get 0,0 while the expected result is 0, 3909

any idea why that can be?
C# solution, and very readable code.

https://www.codewars.com/kata/57db78d3b43dfab59c001abe/train/csharp