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

longdateDiff(Date beginDate, Date endDate)
date Diff 
long beginDateseconds = beginDate.getTime();
long endDateseconds = endDate.getTime();
long diff = endDateseconds - beginDateseconds;
long diffDays = diff / (24 * 60 * 60 * 1000);
return diffDays;
longdateDiff(Date d1, Date d2, int field)
date Diff 
long j = 1;
switch (field) {
case Calendar.YEAR:
    return dateDiffYear(d1, d2);
case Calendar.MONTH:
    return dateDiffMonth(d1, d2);
case Calendar.DATE:
    j = 1000 * 60 * 60 * 24;
...
StringdateDiff(Date date1, Date date2)
date Diff 
long milliseconds1 = date1.getTime();
long milliseconds2 = date2.getTime();
long diff = milliseconds2 - milliseconds1;
long diffSeconds = diff / 1000;
long diffMinutes = diff / (60 * 1000);
long diffHours = diff / (60 * 60 * 1000);
long diffDays = diff / (24 * 60 * 60 * 1000);
diffSeconds = diffSeconds - (diffMinutes * 60);
...
intdateDiff(Date date1, Date date2)
Returns the difference in days between date1 and date2 
Calendar cal1 = Calendar.getInstance();
Calendar cal2 = Calendar.getInstance();
cal1.setTime(date1);
cal2.setTime(date2);
int diff = 0;
while (cal1.before(cal2)) {
    cal1.add(Calendar.DATE, 1);
    diff++;
...
intdateDiff(Date date1, Date date2)
date Diff 
int count = 0;
int diff = 0;
Calendar cal1 = Calendar.getInstance();
Calendar cal2 = Calendar.getInstance();
cal1.setTime(date1);
cal2.setTime(date2);
while (cal1.get(Calendar.YEAR) != cal2.get(Calendar.YEAR)) {
    count = 365 * (cal2.get(Calendar.YEAR) - cal1.get(Calendar.YEAR));
...
longdateDiff(Date fromDate, Date toDate)
date Diff 
return dateDiff(getDateTime(DATE_PATTERN, fromDate), getDateTime(DATE_PATTERN, toDate));
longDateDiff(Date startDate, Date endDate)
Date Diff 
long totalDate = 0;
Calendar calendar = Calendar.getInstance();
calendar.setTime(startDate);
long timestart = calendar.getTimeInMillis();
calendar.setTime(endDate);
long timeend = calendar.getTimeInMillis();
totalDate = (timeend - timestart) / (1000 * 60 * 60 * 24);
return totalDate;
...
longdateDiff(final Date date1, final Date date2)
Calculate difference in milliseconds from 2 dates. 
long result = date1.getTime() - date2.getTime();
return result;
intdateDiff(int category, Date date1, Date date2)
date Diff 
Calendar c1 = Calendar.getInstance();
c1.setTime(date1);
Calendar c2 = Calendar.getInstance();
c2.setTime(date2);
if (YEAR == category) {
    return Math.abs(c2.get(Calendar.YEAR) - c1.get(Calendar.YEAR));
} else if (MONTH == category) {
    return Math.abs((((c2.get(Calendar.YEAR) - c1.get(Calendar.YEAR)) * 12) + c2.get(Calendar.MONTH))
...
intdateDiff(int interval, Date begin, Date end)
date Diff 
long beginTime = begin.getTime() / 1000L;
long endTime = end.getTime() / 1000L;
long tmp = 0L;
if (endTime == beginTime) {
    return 0;
if (endTime < beginTime) {
    tmp = beginTime;
...