From my copy of (perldoc POSIX): 
If you want your code to be portable, your
format ("fmt") argument should use only the conversion
specifiers defined by the ANSI C standard. These are
"aAbBcdHIjmMpSUwWxXyYZ%".

[download]
I'm not familiar with the apparently non-standard %V code. Does that offer the "week number" as requested by the original poster? On what platform(s)?

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[ e d @ h a l l e y . c c ]

In reply to Re^2: ISO Date Week Number by halley
in thread ISO Date Week Number by Anonymous Monk

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