Java Utililty Methods TimeUnit Usage

List of utility methods to do TimeUnit Usage

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Description

The list of methods to do TimeUnit Usage are organized into topic(s).

Method

longparseRelativeTimeInSeconds(String relativeTime)
parse Relative Time In Seconds 
if (relativeTime.isEmpty()) {
    throw new IllegalArgumentException("exipiry time cannot be empty");
int lastIndex = relativeTime.length() - 1;
char lastChar = relativeTime.charAt(lastIndex);
final char timeUnit;
if (!Character.isAlphabetic(lastChar)) {
    timeUnit = 's';
...
DateparseSecondsFromEpoch(Double d)
Parses a double representing seconds from the epoch to a Date object 
synchronized (MONITOR) {
    return new Date(SECONDS.toMillis(d.longValue()));
LongparseStringDate(String date)
parse String Date 
long seconds = Long.parseLong(date);
return TimeUnit.MILLISECONDS.convert(seconds, TimeUnit.SECONDS);
longparseTimeMillis(String timeWithOrWithoutUnit)
parse Time Millis 
int unitIndex = -1;
for (int i = 0; i < timeWithOrWithoutUnit.length(); i++) {
    char ch = timeWithOrWithoutUnit.charAt(i);
    if (!Character.isDigit(ch)) {
        unitIndex = i;
        break;
if (unitIndex == -1) {
    return DEFAULT_TIME_UNIT.toMillis(Integer.parseInt(timeWithOrWithoutUnit));
} else {
    int amount = Integer.parseInt(timeWithOrWithoutUnit.substring(0, unitIndex));
    String unit = timeWithOrWithoutUnit.substring(unitIndex).toLowerCase();
    TimeUnit timeUnit = null;
    int multiplyFactor = 1;
    if (unit.equals("ms")) {
        timeUnit = TimeUnit.MILLISECONDS;
    } else if (unit.equals("s")) {
        timeUnit = TimeUnit.SECONDS;
    } else if (unit.equals("m")) {
        timeUnit = TimeUnit.SECONDS;
        multiplyFactor = 60;
    } else {
        throw new RuntimeException("Unrecognized unit " + unit);
    return timeUnit.toMillis(amount * multiplyFactor);
DateparseUntilTime(byte[] untilTime)
parse Until Time 
if (untilTime.length < 3)
    return null;
int year = 2000 + (untilTime[1] & 0x3f);
int month = (((untilTime[0] & 0xE0) >> 4) | ((untilTime[1] & 0xFF) >> 7)) - 1;
int day = untilTime[0] & 0x1f;
int timeInMinutes = (untilTime[2] & 0x3f) * 30;
int hours = (int) TimeUnit.MINUTES.toHours(timeInMinutes);
int minutes = (int) TimeUnit.MINUTES.toMinutes(timeInMinutes) - (int) TimeUnit.HOURS.toMinutes(hours);
...
voidpause()
pause 
try {
    TimeUnit.DAYS.sleep(1);
} catch (InterruptedException e) {
    e.printStackTrace();
StringprettyMillis(long mil)
Convert millisecond value to human readable string hh:mm:ss.xxx 
long h, m, s;
long millis = mil;
h = TimeUnit.MILLISECONDS.toHours(millis);
millis -= TimeUnit.HOURS.toMillis(h);
m = TimeUnit.MILLISECONDS.toMinutes(millis);
millis -= TimeUnit.MINUTES.toMillis(m);
s = TimeUnit.MILLISECONDS.toSeconds(millis);
millis -= TimeUnit.SECONDS.toMillis(s);
...
voidprintTimeMap(Map timeMap)
print Time Map 
System.out.println(toStringTimeMap(timeMap));
StringprintTimeString(long time)
print Time String 
TimeUnit timeUnit = TimeUnit.MILLISECONDS;
long diffSec = timeUnit.toSeconds(time);
long diffMin = timeUnit.toMinutes(time);
StringBuilder sb = new StringBuilder();
sb.append(time).append(" ms");
if (diffMin >= 1) {
    sb.append("(").append(diffMin).append("m").append(" ")
            .append(diffSec - TimeUnit.MINUTES.toSeconds(diffMin)).append("s").append(")");
...
StringprintTiming(long start, long end)
Print time difference in minutes, seconds and milliseconds 
long totalMillis = end - start;
long mins = TimeUnit.MILLISECONDS.toMinutes(totalMillis);
long secs = TimeUnit.MILLISECONDS.toSeconds(totalMillis) - TimeUnit.MINUTES.toSeconds(mins);
long millis = TimeUnit.MILLISECONDS.toMillis(totalMillis) - TimeUnit.MINUTES.toMillis(mins)
        - TimeUnit.SECONDS.toMillis(secs);
return String.format("%d min, %d sec, %d millis", mins, secs, millis);