# ccall SetUTCDateTime , Ptr <UTCDateTime> -> <OptionBits> -> IO <OSStatus>
# ccall GetLocalDateTime , Ptr <LocalDateTime> -> <OptionBits> -> IO <OSStatus>
# ccall SetLocalDateTime , Ptr <LocalDateTime> -> <OptionBits> -> IO <OSStatus>
# ccall SetUTCDateTime , Ptr <UTCDateTime> -> <OptionBits> -> IO <OSStatus>
# ccall GetLocalDateTime , Ptr <LocalDateTime> -> <OptionBits> -> IO <OSStatus>
# ccall SetLocalDateTime , Ptr <LocalDateTime> -> <OptionBits> -> IO <OSStatus>