Try this:
In modeling, create a string expresion with name=date and formula = dateTimeString( "localTime?", True ).
In drafting, create a note, expand "Symbols", change category to "Relationships", insert expresion, select "date".
Create a custom comand in NX requires the runtime license for C or KBE ($$$$)
Hope this help you
Jesús Valiñas
CAD/CAM enginering