code: protected void setupBeginTimeExp(StringBuilder sb, TransactionSavedRecentResult result) {
          sb.append("(");
          final Long beginMillis = result.getBeginMillis();
          if (beginMillis != null) {
              sb.append(toDateExp(beginMillis));
          } else {
              sb.append("*unknown time");
          }
          sb.append(")");
      }
docs: =========