Android Utililty Methods Calendar Compare

List of utility methods to do Calendar Compare

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Description

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

Method

StringgetDateDelta(int delta, String dateFormat)
Returns date delta from current time with `dateFormat` 
Calendar current = Calendar.getInstance();
current.add(Calendar.DATE, delta);
return formatDate(current.getTime(), dateFormat);
booleanisDateInInterval(Calendar date, int interval, TimeUnit type)
Check if a given date lies in a given interval from today's date. 
Calendar diff = Calendar.getInstance();
long today = Calendar.getInstance().getTimeInMillis();
diff.setTimeInMillis(TimeUnit.MILLISECONDS.convert(interval, type));
return (date.getTimeInMillis() - today < diff.getTimeInMillis());
booleanisCurrentTimeInRange(Calendar now, Calendar start, Calendar end)
is Current Time In Range 
if (DEBUG)
    Log.d(TAG, "start.before(now)=" + start.before(now));
if (DEBUG)
    Log.d(TAG, "end.after(now)=" + end.after(now));
return start.before(now) && end.after(now);
booleanisFiveMinutesOlder(Calendar updatedAt)
is Five Minutes Older 
Calendar rightnow = Calendar.getInstance();
rightnow.add(Calendar.MINUTE, 5);
int compare = updatedAt.compareTo(rightnow);
Log.d(TAG, "compare: " + compare);
return compare < 0;
booleanisPast(String end)
is Past 
String[] splitEndStr = end.split(":");
int hrEnd = Integer.parseInt(splitEndStr[0]);
int minEnd = Integer.parseInt(splitEndStr[1]);
Calendar endCal = Calendar.getInstance();
endCal.set(Calendar.HOUR_OF_DAY, hrEnd);
endCal.set(Calendar.MINUTE, minEnd);
Calendar currentCal = Calendar.getInstance();
if (endCal.before(currentCal)) {
...
booleanisOverCurrentDate(int day, int month, int year, int maxDay, int maxMonth, int maxYear)
is Over Current Date 
if (year > maxYear)
    return true;
else if (month > maxMonth && year == maxYear)
    return true;
else if (day > maxDay && month == maxMonth && year == maxYear)
    return true;
else
    return false;
...
booleanisUpdateTimeRecently(Calendar currentTime, Calendar updateTime)
is Update Time Recently 
for (int i = 0; i < INTERVAL_MINUTE_TO_UPDATE; i++) {
    updateTime.add(Calendar.MINUTE, 1);
if (currentTime.compareTo(updateTime) == 1) {
    return false;
return true;