docs: public static Instant parseIso8601Date(String dateString) {
          // For EC2 Spot Fleet.
          if (dateString.endsWith("+0000")) {
              dateString = dateString
                      .substring(0, dateString.length() - 5)
                      .concat("Z");
          }
  
          try {
              return parseInstant(dateString, ISO_INSTANT);
          } catch (DateTimeParseException e) {
              return parseInstant(dateString, ALTERNATE_ISO_8601_DATE_FORMAT);
          }
      }