AIUI, an extension compiled with 5.x.a is guaranteed to work with 5.x.b if and only if a <= b && $Config{archname} has not changed.
So, yes - a build of Time::Piece that was compiled with perl-5.8.3 should be fine with perl-5.8.6.
It's highly unlikely that Windows builds of perl-5.8.3 and perl-5.8.6 would differ in $Config{archname}.

Cheers,
Rob

In reply to Re^3: Installing a missing module - Perl 5.8.3 by syphilis
in thread Installing a missing module - Perl 5.8.3 by amitvalia

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