"I would like it to print Friday Mar 11, 2016."

strptime() is for parsing datetime strings.

strftime() is for formatting datetime strings.

You can get the output you want by using Time::Piece's strftime() with the appropriate POSIX strftime pattern. Note the chained object methods so you can parse and format in one statement: 

$ perl -MTime::Piece -E'
my $date = "3/11/16";
say Time::Piece->strptime($date, "%D")->strftime("%A %b %e, %Y");
'

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Output: 
Friday Mar 11, 2016

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Regarding your existing use of strptime: as Mr. Muskrat points out, the pattern %D is a shortcut for %m/%d/%y.

At a guess I would say your input looks like 3/11/16 and the date is being parsed by %D -- the rest of the patterns are ignored. You probably thought %D was 'day' and '%M' was month etc.

Hope this helps!


Update: moved the lead above the fold
The way forward always starts with a minimal test.

In reply to Re: Using Time::Piece Strptime by 1nickt
in thread Using Time::Piece Strptime by GrorkGnom

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