Android Utililty Methods Date String Parse

String txtDate = "";
String expectedPattern = "yyyy-MM-dd";
SimpleDateFormat formatter = new SimpleDateFormat(expectedPattern);
Date date;
try {
    date = formatter.parse(YearMonthDay);
    DateFormat df = new SimpleDateFormat("MMMM dd,yyyy");
    txtDate = df.format(date);
...

String convertedDate = "";
SimpleDateFormat formatter = new SimpleDateFormat("MM/dd/yyyy");
Date date;
try {
    date = formatter.parse(MonthDayYear);
    DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
    convertedDate = df.format(date);
} catch (Exception e) {
...

SimpleDateFormat sdf = new SimpleDateFormat(format);
long time = -1;
try {
    time = sdf.parse(date).getTime();
} catch (ParseException e) {
    e.printStackTrace();
return time;
...

String txtDate = "";
String expectedPattern = "yyyy-MM-dd HH:mm:ss";
SimpleDateFormat formatter = new SimpleDateFormat(expectedPattern);
Date date;
try {
    date = formatter.parse(YearMonthDayHourMinuteSeconds);
    DateFormat df = new SimpleDateFormat("MMMM dd,yyyy @ HH:mm");
    txtDate = df.format(date);
...

SimpleDateFormat dateFormat = new SimpleDateFormat("dd-MMMM-yy");
Date convertedDate = new Date();
try {
    convertedDate = dateFormat.parse(dateString);
} catch (ParseException e) {
    e.printStackTrace();
return convertedDate.toLocaleString();
...

SimpleDateFormat sdf = new SimpleDateFormat(format);
return sdf.parse(dateString);

final HashMap<String, Object> result = new HashMap<String, Object>();
if (dateString == null || dateString.length() == 0) {
    return result;
final String[] dateTime = dateString.split(" ");
final String[] dateItems = dateTime[0].split("-");
result.put(YEAR, dateItems[0]);
result.put(MONTH, dateItems[1]);
...

SimpleDateFormat sdf = new SimpleDateFormat(
        "yyyy-MM-dd'T'hh:mm:ss.S'Z'");
return sdf.parse(dateString);

Date result = null;
SimpleDateFormat format = RFC3339Formatter.get();
boolean isLocal = date.endsWith("Z");
if (date.contains(".")) {
    int fracIndex = date.indexOf(".");
    String first = date.substring(0, fracIndex);
    String second = null;
    if (isLocal) {
...

Date result = null;
if (date.contains("PDT")) {
    date = date.replace("PDT", "PST8PDT");
if (date.contains(",")) {
    date = date.substring(date.indexOf(",") + 1).trim();
SimpleDateFormat format = RFC822Formatter.get();
...