Java Utililty Methods Parse Date

List of utility methods to do Parse Date

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Description

The list of methods to do Parse Date are organized into topic(s).

Method

CalendarparseDateTime(String fullDateParam, String unixDateParam, Map request)
Parses datetime (firstly formated by DATE_FORMAT then unix format). 
String[] fullDateStrArr = request.get(fullDateParam);
if (fullDateStrArr != null && fullDateStrArr.length == 1) {
    String dateStr = fullDateStrArr[0];
    return parseFullDate(fullDateParam, dateStr);
String[] unixDateStrArr = request.get(unixDateParam);
if (unixDateStrArr != null && unixDateStrArr.length == 1) {
    String dateStr = unixDateStrArr[0];
...
longparseDateTime(String s)
Parses a date from a string. 
DateFormat df = null;
for (int i = 0; true; ++i) {
    switch (i) {
    case 0:
        df = new java.text.SimpleDateFormat("MMM d, yyyy K:m:s a", java.util.Locale.ENGLISH);
        break;
    case 1:
        df = DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.MEDIUM, java.util.Locale.ENGLISH);
...
DateparseDateTime(String s)
parse Date Time 
if (s == null || s.length() == 0)
    return null;
for (DateFormat dateFormat : dateTimeParsers) {
    try {
        Date res = dateFormat.parse(s);
        return res;
    } catch (Exception e) {
return null;
DateparseDateTime(String s)
Converts a date in the form of "yy-MM-dd HH:mm:ss" to a Date object using the default time zone. 
return parseDateTime(s, null);
CalendarparseDateTime(String s)
Parses the date/time stamp from a given input parameter using one of the following formats
  • mm/dd/yyyy
  • mm/dd/yyyy hh:mm:ss
  • EEE MMM dd HH:mm:ss zzz yyyy - this is the standard output from the unix date command
  • EEE mm/dd/yyyy HH:mm:ss.ms - this is the standard output from the windows command echo %date% %time%
  • yyyy-MM-ddThh:mm:ss.zzzzzzz
  • Epoch time (ms)
  • PnYnMnDTnHnMnS - XML lexical representation
SimpleDateFormat f1 = new SimpleDateFormat("MM/dd/yyyy");
SimpleDateFormat f2 = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");
SimpleDateFormat f3 = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy");
SimpleDateFormat f4 = new SimpleDateFormat("EEE MM/dd/yyyy HH:mm:ss.ms");
SimpleDateFormat f5 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.zzzzzzz");
Date d = null;
try {
    d = f1.parse(s, new ParsePosition(0));
...
DateparseDatetime(String value)
parse Datetime 
try {
    return DATETIME_FORMATTER.parse(value);
} catch (ParseException e) {
    throw new RuntimeException("Cannot parse " + value);
DateparseDateTimeFromString(String datetime)
parse Date Time From String 
Date date = tryToParse(datetime, RFC_822_DATE_FORMAT.get());
if (date == null) {
    date = tryToParse(datetime, RFC_850_DATE_FORMAT.get());
if (date == null) {
    date = tryToParse(datetime, ANSI_DATE_FORMAT.get());
return date;
...
DateparseDateTimeHuman(String dateString)
parse Date Time Human 
DateFormat df = new SimpleDateFormat(DATE_TIME_PATTERN_HUMAN);
Date date;
try {
    date = df.parse(dateString);
} catch (ParseException e) {
    date = new Date();
return date;
...
LongparseDateTimeString(final String date)
parse Date Time String 
if (NULL.equals(date) || date == null || date.length() == 0) {
    return null;
String tmp = date.replace('T', ' ');
tmp = tmp.replaceAll("#", ":");
tmp = tmp.replaceAll(FILE_MILLISECOND_SEPERATOR, ".");
tmp = tmp.replace("Z", " +0000");
final SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS zzz");
...
StringparseDateTimeString(String dateTime)
Parse time stamp from elfcloud.fi server 
if (dateTime == null || dateTime.length() == 0) {
    return "";
Calendar c = Calendar.getInstance();
TimeZone z = c.getTimeZone();
SimpleDateFormat inputFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
inputFormat.setTimeZone(TimeZone.getTimeZone("Etc/UTC"));
SimpleDateFormat outputFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm Z");
...