Key for the value that specifies how the morning and afternoon designations are printed, affecting strings that use the %p format specifier. (Deprecated. Use AMSymbol or PMSymbol (NSDateFormatter) instead.)
The defaults are “AM” and “PM”.
Available in Mac OS X v10.0 and later.
Declaration Syntax Version Information- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)