IsSameHour(zonedTimestamp, zonedTimestampToCompare), is(true)) 5. We can see that two ZonedDateTime objects are actually happening within the same hour, even if their local times are different (8:30 and 14:00, respectively): ZonedDateTime zonedTimestamp = isEqual(uncatedTo(HOURS)) įinally, in a similar way, we can check if two ZonedDateTime instances happen within the same hour: public static boolean isSameHour(ZonedDateTime zonedTimestamp, Thirdly, we can implement a comparison at the level of an hour: public static boolean isSameHour(LocalDateTime timestamp, The truncatedTo(TemporalUnit) method truncates a date on the given level, which in our example is a day. Secondly, we'll check if two instances of LocalDateTime are on the same day: public static boolean isSameDay(LocalDateTime timestamp, Return timestamp.toLocalDate().isEqual(localDateToCompare) Public static boolean isSameDay(LocalDateTime timestamp, Solutions to LeetCode Online Judge problems in Java - LeetCode-Java-Solutions/Pairs of Songs With Total Durations Divisible by 60. They have different LocalDateTime and ZoneId fields internally: assertThat(timeInNewYork.equals(timeInBerlin), is(false)) ĪssertThat(pareTo(timeInBerlin), is(-1)) 4. ZonedDateTime.of(2019, 8, 10, 14, 0, 0, 0, ZoneId.of("Europe/Berlin")) ĪssertThat(timeInNewYork.isAfter(timeInBerlin), is(false)) ĪssertThat(timeInNewYork.isBefore(timeInBerlin), is(false)) ĪssertThat(timeInNewYork.isEqual(timeInBerlin), is(true)) Īlthough both ZonedDateTime instances represent the same moment in time, they do not represent equal Java objects. Let's compare 8:00 local time in New York and 14:00 local time in Berlin, on the same day: ZonedDateTime timeInNewYork = Likewise, we can use the same methods for comparing two ZonedDateTime instances. Also here, set the right time zone or what you are doing is. This is the class to use when one must determine the start and end of a day. It also allows modification of individual fields. Additionally, equals() and compareTo() can be used in a similar fashion as described for LocalDate. It allows to convert to and from Date with the setTime and getTime methods. Then we start comparing the current interval to the next. Now, we create the stack of pair & Push the first interval directly to a stack. Second, we have to Sort the intervals primarily based on increasing order of beginning time using Pair class. Similarly to LocalDate, we're comparing two LocalDateTime instances with the methods isAfter(), isBefore() and isEqual(). Algorithm to solve Merge Overlapping Interval problem in Java: First, we create a new Pair class.