case nsMsgSearchOp::IsBefore:
    if (t_date < nsTime(m_value.u.date))
      result = PR_TRUE;
    break;
  case nsMsgSearchOp::IsAfter:
    {
      nsTime adjustedDate = nsTime(m_value.u.date);
      adjustedDate += 60*60*24; // we want to be greater than the next day....
      if (t_date > adjustedDate)
        result = PR_TRUE;
    }
    break;