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

intgetDayFromTimestamp(final long unixTimestamp)
get Day From Timestamp 
Calendar cal = Calendar.getInstance();
cal.setTimeInMillis(TimeUnit.MILLISECONDS.convert(unixTimestamp, TimeUnit.SECONDS));
int day = cal.get(Calendar.DAY_OF_WEEK) - 1;
return day;
longgetDays(final long ms)
get Days 
return TimeUnit.MILLISECONDS.toDays(ms);
ListgetDays(long endTs, Long lookback)
get Days 
long to = midnightUTC(endTs);
long from = midnightUTC(endTs - (lookback != null ? lookback : endTs));
List<Date> days = new ArrayList<>();
for (long time = from; time <= to; time += TimeUnit.DAYS.toMillis(1)) {
    days.add(new Date(time));
return days;
StringgetDeltaBetweenTimestamps(final long start, final long end)
Provides delta between timestamps in format "X Days XXhr XXm XXs". 
if (start < 0 || end < 0 || start > end) {
    throw new IllegalArgumentException("Wrong timestamp values: " + start + " or " + end);
TimeUnit timeUnit = TimeUnit.SECONDS;
long diffInMilliseconds = end - start;
long s = timeUnit.convert(diffInMilliseconds, TimeUnit.MILLISECONDS);
long days = s / (24 * 60 * 60);
long rest = s - (days * 24 * 60 * 60);
...
longgetDifferenceDays(Date d1, Date d2)
get Difference Days 
long diff = d2.getTime() - d1.getTime();
return TimeUnit.DAYS.convert(diff, TimeUnit.MILLISECONDS);
longgetDiffInMinutes(Calendar startTime, Calendar endTime)
Returns the difference of two calendars in minutes 
long diffMillis = Math.abs(endTime.getTimeInMillis() - startTime.getTimeInMillis());
return TimeUnit.MILLISECONDS.toMinutes(diffMillis);
StringgetDurationBreakdown(long millis)
get Duration Breakdown 
String[] units = { " Days ", " Hours ", " Minutes ", " Seconds " };
Long[] values = new Long[units.length];
if (millis < 0) {
    throw new IllegalArgumentException("Duration must be greater than zero!");
values[0] = TimeUnit.MILLISECONDS.toDays(millis);
millis -= TimeUnit.DAYS.toMillis(values[0]);
values[1] = TimeUnit.MILLISECONDS.toHours(millis);
...
StringgetDurationBreakdown(long millis)
Convert a millisecond duration to a string format 
long days = TimeUnit.MILLISECONDS.toDays(millis);
millis -= TimeUnit.DAYS.toMillis(days);
long hours = TimeUnit.MILLISECONDS.toHours(millis);
millis -= TimeUnit.HOURS.toMillis(hours);
long minutes = TimeUnit.MILLISECONDS.toMinutes(millis);
millis -= TimeUnit.MINUTES.toMillis(minutes);
long seconds = TimeUnit.MILLISECONDS.toSeconds(millis);
millis -= TimeUnit.MILLISECONDS.toMillis(minutes);
...
StringgetDurationBreakdown(long millis)
Convert a millisecond duration to a string format 
long ms = millis;
if (ms < 0)
    return "ASAP";
long days = TimeUnit.MILLISECONDS.toDays(ms);
ms -= TimeUnit.DAYS.toMillis(days);
long hours = TimeUnit.MILLISECONDS.toHours(ms);
ms -= TimeUnit.HOURS.toMillis(hours);
long minutes = TimeUnit.MILLISECONDS.toMinutes(ms);
...
StringgetDurationBreakdown(long millis)
get Duration Breakdown 
long time = millis;
if (time < 0) {
    throw new IllegalArgumentException("Duration must be greater than zero!");
long days = TimeUnit.MILLISECONDS.toDays(time);
time -= TimeUnit.DAYS.toMillis(days);
long hours = TimeUnit.MILLISECONDS.toHours(time);
time -= TimeUnit.HOURS.toMillis(hours);
...