Java Utililty Methods Date Difference

List of utility methods to do Date Difference

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Description

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

Method

DateparseParamDate(final String diff)
parse a string to get absolute date 
final String dateString = "0000-01-01T00:00:00.000UTC";
final DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZZZ");
final char[] dateChars = dateString.toCharArray();
String timeZone = "UTC";
final String[] units = diff.split("[.]");
for (final String unit : units) {
    if (unit.matches("[YMDhms][0-9]+") || unit.matches("[Z]...")) {
        final char unitdesc = unit.charAt(0);
...
longtimeDiff(Calendar date1, Calendar date2)
time Diff 
long diff = date1.getTimeInMillis() - date2.getTimeInMillis();
return diff;
StringtimeDiffHourMinSec(Date start, Date end)
time Diff Hour Min Sec 
Calendar calendar = GregorianCalendar.getInstance();
calendar.setTime(start);
long startTime = calendar.getTimeInMillis();
calendar.setTime(end);
long endTime = calendar.getTimeInMillis();
long diff = endTime - startTime;
long seconds = (diff / 1000) % 60;
long minutes = (diff / (60 * 1000)) % 60;
...