confusing datestr and datetime month and minutes formating

In the function datestr, identifier for month is 'mm' and identifier for minutes is 'MM'.

However, in the function datetime is it different. Identifier for month is 'MM' and identifier for minutes is 'mm'.

Why?

Answer 1

[Jan]

MathWorks tried to make it more consistent in the new datetime objects. [EDITED] See the link to Loren's blog posted by Steven Lord.

[Steven Lord]

Or read this Answer, in which I included a link to a post on Loren's blog where we answer that question.

Answer 2

[Peter Perkins]

The formats for datetime are not just more consistent, they are an international standard.