When you enter a date using format MM-DD-YYYY and save it to computer or some other file systems the files STAY in chonological order.

When you use DD-MM-YYYY the files are sorted by days. To maintain chonological order without additional manipulation use the MM-DD-YYYY format.

Example:
A folder containing Staff meetings when the meetings are named by date....

MM-DD-YYYY Format

01-14-2009 January Meeting
02-14-2009 February Meeting
03-10-2009 March Meeting
04-05-2009 April Meeting

Using DD-MM-YYYY Format the files are sorted...

05-04-2009 April Meeting
10-05-2009 March Meeting
14-01-2009 January Meeting
14-02-2009 February Meeting

The first approach appears more logical and easier to find

Just another point of view........
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"A Wise Man knows what he does not know!"