DTSTART;TZID="Eastern":20100728T140000
DTEND;TZID="Eastern":20100728T150000

String ds = "DTSTART;TZID="Eastern":20100728T140000";
Date d = new SimpleDateFormat("yyyyMMdd'T'HHMMSS").parse(ds.split(":")[1]);

String[] strings = new String[]{"DTSTART;TZID="Eastern":20100728T140000", "DTEND;TZID="Eastern":20100728T150000"};

    for (String string : strings) {
        String dateString = string.replaceAll("(DTSTART|DTEND);TZID="Eastern":", "");
        dateString = dateString.replaceAll("T", "");

        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
        try {
            Date date = sdf.parse(dateString);
            System.out.println(date);
        } catch (ParseException e) {
            e.printStackTrace();
        }
    }

String[] strings = new String[]{"DTSTART;TZID="Eastern":20100728T140000", "DTEND;TZID="Eastern":20100728T150000"};

    for (String string : strings) {
        String dateString = string.replaceAll("(DTSTART|DTEND);TZID="Eastern":", "");
        dateString = dateString.replaceAll("T", "");

        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
        try {
            Date date = sdf.parse(dateString);
            System.out.println(date);
        } catch (ParseException e) {
            e.printStackTrace();
        }
    }