public String getParsedDateStr() {
            SimpleDateFormat sdf = new SimpleDateFormat(this.DATE_FORMAT, Locale.ROOT);
            sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
            return sdf.format(this.getParsedDate() != null ? this.getParsedDate() : new Date());
        }
Tika parser for Time Stamped Data Envelope (application/timestamped-data)
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-crypto-module/src/main/java/org/apache/tika/parser/crypto/TSDParser.java