The system (NTFS + WinXP) doesn't appear to work that way.

As you can see, the system says the parent directory (".") was last modified earlier than when the child directory ("dir2") was last modified: 

>dir dir1
 Volume in drive C is C
 Volume Serial Number is 28AB-0E8B

 Directory of C:\Documents and Settings\ikegami\dir1

2009/08/28  12:43 PM    <DIR>          .
2009/08/28  12:43 PM    <DIR>          ..
2009/08/28  12:44 PM    <DIR>          dir2

[download]

Perl reports the same.

In reply to Re^3: Folder modified time by ikegami
in thread Folder modified time by Selvakumar

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.