Java Utililty Methods Timestamp

List of utility methods to do Timestamp

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Description

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

Method

booleanisDST(Timestamp ts)
Whether we are in DST for a particular time in the servers default timezone. 
return !DateTimeZone.getDefault().isStandardOffset(ts.getTime());
booleanisInPast(Timestamp timeStamp)
is In Past 
return timeStamp.getTime() < System.currentTimeMillis();
booleanisLongDate(Timestamp date)
Tells whether Timestamp is in long format: with hours, minutes and seconds fields. 
return date.toString().indexOf("00:00:00") == -1;
booleanisLongTerm(Timestamp oldTime, Timestamp newTime)
is Long Term 
long delta = Math.abs(newTime.getTime() - oldTime.getTime());
int days = (int) (delta / (1000 * 60 * 60 * 24));
if (days >= 365) {
    return true;
return false;
booleanisSameDay(Timestamp one, Timestamp two)
Is it the same day 
GregorianCalendar calOne = new GregorianCalendar();
calOne.setTimeInMillis(one.getTime());
GregorianCalendar calTwo = new GregorianCalendar();
calTwo.setTimeInMillis(two.getTime());
if (calOne.get(Calendar.YEAR) == calTwo.get(Calendar.YEAR)
        && calOne.get(Calendar.MONTH) == calTwo.get(Calendar.MONTH)
        && calOne.get(Calendar.DAY_OF_MONTH) == calTwo.get(Calendar.DAY_OF_YEAR))
    return true;
...
booleanisSameMonth(Timestamp t1, Timestamp t2)
is Same Month 
Calendar cal = Calendar.getInstance();
cal.setTime(t1);
int year1 = cal.get(Calendar.YEAR);
int month1 = cal.get(Calendar.MONTH);
System.out.println("year1:" + year1 + "month1:" + month1);
cal.setTime(t2);
int year2 = cal.get(Calendar.YEAR);
int month2 = cal.get(Calendar.MONTH);
...
booleanIsTechStatisticWorkTime(Timestamp timestamp)
Is Tech Statistic Work Time 
try {
    int weekDay = getDayOfWeek(timestamp);
    if (weekDay >= 1 && weekDay <= 5) {
        if ((timestamp.getHours() >= 8 && timestamp.getHours() < 22)) {
            return true;
    } else {
        if (((timestamp.getHours() >= 10)) && timestamp.getHours() < 19) {
...
booleanisTimeStamp(Class o)
is Time Stamp 
return o.toString().equals("class java.sql.Timestamp");
booleanisTimestamp(String aS_DateTime, String aS_Format)
Checks if datetime is aS_DateTime is same as in aS_Format 
return stringToTimestamp(aS_DateTime, aS_Format, null, null) != null;
booleanisTimestamp(String str)
is Timestamp 
try {
    @SuppressWarnings("unused")
    Date d = java.sql.Date.valueOf(str);
    return true;
} catch (Exception e) {
return false;