Why those different string formats on TimeSpan on XAML?

Question

I\'m going crazy. Can someone explain me why these string formats formatting the same thing are so different?

Answer 1

I'm no expert in formatting TimeSpan so I can't tell you exactly why they produce the same result but you can read up about it here: Custom TimeSpan Format Strings

Of course each one do not work on the other.

They do work the same way, the thing is just that you should use one backslash within the double quotes. The following

comes out to hh\\\\:mm\\\\:ss. So instead you should write

The following two Bindings should produce the same result

And so should the following two