Java Utililty Methods LocalDateTime Calculate

List of utility methods to do LocalDateTime Calculate

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Description

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

Method

ZonedDateTimegetZonedDateTime(LocalDateTime dateTime, TimeZone timeZone)
get Zoned Date Time 
ZoneId zoneId = timeZone.toZoneId();
return dateTime.atZone(zoneId);
booleanisAfter(LocalDateTime endDateTime, LocalDateTime startDateTime)
Checks id the end date time is after start date time 
if (isNotNull(endDateTime) && isNotNull(startDateTime)) {
    return endDateTime.isAfter(startDateTime);
return false;
booleanisAfterNow(LocalDateTime pValidUntil)
is After Now 
if (pValidUntil != null) {
    LocalDateTime now = LocalDateTime.now();
    return pValidUntil.isAfter(now);
return true;
booleanisBefore(LocalDateTime dateTime1, LocalDateTime dateTime2)
Check if a dateTime is before another datetime null dateTime is considered to be after 
if (dateTime2 == null) {
    return true;
if (dateTime1 == null) {
    return false;
return dateTime1.isBefore(dateTime2);
booleanisOverdue(LocalDateTime dueTime)
Checks against system time if the provided dueTime is before system time. 
return dueTime.isBefore(LocalDateTime.now());
booleanisToday(LocalDateTime dateTime)
Check if datetime is from today 
LocalDate today = LocalDate.now();
LocalDate date = dateTime.toLocalDate();
return date.equals(today);
BooleanisTodayOrYesterday(LocalDateTime date)
is Today Or Yesterday 
return date.toLocalDate().equals(getDateTime().toLocalDate())
        || date.toLocalDate().equals(getDateTime().toLocalDate().minusDays(1));
PredicateisWithin(LocalDateTime start, LocalDateTime end)
Returns a Predicate that returns true if a LocalDateTime is between two others. 
if (!start.isBefore(end)) {
    throw new IllegalArgumentException("Start " + start + " must be before end " + end);
return dt -> !dt.isBefore(start) && dt.isBefore(end);
LocalDateTimelast(LocalDateTime from, int dayOfWeek)
last 
int start = from.getDayOfWeek().getValue();
if (start == 0) {
    start = 7;
if (dayOfWeek == 0) {
    dayOfWeek = 7;
return from.plusDays(dayOfWeek - start - 7);
...
LocalDatelocalDateTime2LocalDate(LocalDateTime localDateTime)
local Date Time Local Date 
return localDateTime.toLocalDate();