Java Utililty Methods Long Number to Time

List of utility methods to do Long Number to Time

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Description

The list of methods to do Long Number to Time are organized into topic(s).

Method

intconvertTimeToInt(long seconds)
Converts a long seconds value to an int seconds value and takes into account overflow from the downcast by switching to Integer.MAX_VALUE. 
if (seconds > Integer.MAX_VALUE) {
    return Integer.MAX_VALUE;
} else {
    return (int) seconds;
StringconvertTimeToString(final long time)
Converting the time into String format. 
StringBuilder sb = new StringBuilder();
sb.append(time / MILLISEC_DECIMAL_DIVIDER);
long millisecs = time % MILLISEC_DECIMAL_DIVIDER;
if (millisecs > 0) {
    sb.append(".");
    if (millisecs < SMALLEST_TWO_DIGIT_DECIMAL) {
        sb.append("00");
    } else if (millisecs < SMALLEST_THREE_DIGIT_DECIMAL) {
...
StringconvertTimeToString(final long timeInMillis)
convert Time To String 
final Calendar calendar = Calendar.getInstance(Locale.GERMAN);
calendar.setTimeInMillis(timeInMillis);
final SimpleDateFormat format = new SimpleDateFormat(TIME_FORMAT_PATTERN);
format.setTimeZone(TimeZone.getTimeZone("GMT+0")); 
return format.format(calendar.getTime());
longconvertTimeUnit(long epochTime, String timeUnit)
convert Time Unit 
long modTime = epochTime;
if (timeUnit.equals("hour")) {
    modTime /= MILISEC_PER_HOUR;
} else if (timeUnit.equals("day")) {
    modTime /= MILISEC_PER_DAY;
} else {
    throw new IllegalArgumentException("invalid time unit");
return modTime;
longconvertTimeUnit(long epochTime, String timeUnit)
convert Time Unit 
long modTime = epochTime;
if (timeUnit.equals(TIME_UNIT_SEC)) {
    modTime /= MILISEC_PER_SEC;
} else if (timeUnit.equals(TIME_UNIT_MIN)) {
    modTime /= MILISEC_PER_MIN;
} else if (timeUnit.equals(TIME_UNIT_HOUR)) {
    modTime /= MILISEC_PER_HOUR;
} else if (timeUnit.equals(TIME_UNIT_DAY)) {
...
StringconvertUnixTime(long unixtime)
Convert unix time to date,default is yyyy-MM-dd HH:mm:ss. 
String formatter = "yyyy-MM-dd HH:mm:ss";
return convertUnixTime(unixtime, formatter);
StringconvertUnixTimeStampToMySql(long timestamp)
convert Unix Time Stamp To My Sql 
Date date = new Date(timestamp * 1000L);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String formattedDate = "";
try {
    formattedDate = sdf.format(date);
} catch (Exception E) {
    E.printStackTrace();
return formattedDate;
StringcreateCookie(String name, String value, String path, String domain, long stateTimeToLive)
create Cookie 
String contextCookie = name + "=" + value;
if (path != null) {
    contextCookie += ";Path=" + path;
if (domain != null) {
    contextCookie += ";Domain=" + domain;
Date expiresDate = new Date(System.currentTimeMillis() + stateTimeToLive);
...
StringcreateFileDateTimeString(final Long ms)
Create a 'file' format date string. 
if (ms == null) {
    return NULL;
final SimpleDateFormat sdf = new SimpleDateFormat(FILE_TIME_FORMAT);
sdf.setTimeZone(UTC_TIME_ZONE);
sdf.getCalendar().setTimeZone(UTC_TIME_ZONE);
return createDateTimeString(ms, sdf, FILE_MILLISECOND_SEPERATOR);
StringelapsedTime(long start, long end)
Calculate the elapsed time between two times specified in milliseconds. 
if (start > end) {
    return null;
long[] elapsedTime = new long[TIME_FACTOR.length];
for (int i = 0; i < TIME_FACTOR.length; i++) {
    elapsedTime[i] = start > end ? -1 : (end - start) / TIME_FACTOR[i];
    start += TIME_FACTOR[i] * elapsedTime[i];
NumberFormat nf = NumberFormat.getInstance();
nf.setMinimumIntegerDigits(2);
StringBuffer buf = new StringBuffer();
for (int i = 0; i < elapsedTime.length; i++) {
    if (i > 0) {
        buf.append(":");
    buf.append(nf.format(elapsedTime[i]));
return buf.toString();