{
{    The purpose of this request is to provide a comparison of two dates.
{
{       PMP$DATE_TIME_COMPARE (LEFT_OPERAND, RIGHT_OPERAND, COMPARISON_RESULT,
{             STATUS)
{
{ LEFT_OPERAND: (input)  This parameter specifies the left operand date_time.
{
{ RIGHT_OPERAND: (input)  This parameter specifies the right operand date_time.
{
{ COMPARISON_RESULT: (output)  This parameter specifies the result of the
{       date_time comparison as follows:
{
{       PMC$LEFT_IS_GREATER if the left operand value is greater.  PMC$EQUAL if
{       the left and right operand values are equal.  PMC$RIGHT_IS_GREATER if
{       the right operand value is greater.
{
{ STATUS: (output) This parameter specifies the request status.
{    CONDITIONS:
{          pme$invalid_day
{          pme$invalid_month
{          pme$invalid_year
{          pme$invalid_millisecond
{          pme$invalid_second
{          pme$invalid_minute
{          pme$invalid_hour
{
