To compare to Instant objects we can use compareTo() because it implements the Comparable interface, but also we can use the Joda-Time API methods provided in the ReadableInstant interface which Instant also implements: assertTrue(pareTo(oneMinuteAgoInstant) > 0) ĪssertTrue(instantNow.isAfter(oneMinuteAgoInstant)) ĪssertTrue(oneMinuteAgoInstant.isBefore(instantNow)) ĪssertTrue(oneMinuteAgoInstant.isBeforeNow()) ĪssertFalse(oneMinuteAgoInstant.isEqual(instantNow)) Īnother helpful feature is that Instant can be converted to a DateTime object or event a Java Date:Ī Duration represents the time in milliseconds between two points in time or in this case it could be two Instants. Now that we know what Instant represents and how we can create one, let's see how it can be used. = Instant.parse(" 10:11:12", dateTimeFormatter) When date and time are represented as a String we have the option to parse the String using our desired format: Instant parsedInstant = new Instant(System.currentTimeMillis() - (60 * 1000))
#Joda time minus minutes iso#
The constructors accept a String representing a date and time in the ISO format, a Java Date or a long value representing the number of milliseconds from : Instant instantFromString = Instant.ofEpochSecond(secondsFromEpochTime) = Instant.ofEpochMilli(milliesFromEpochTime) To create an Instant for a custom moment in time we can use either one of the constructors or use the methods ofEpochMilli() and ofEpochSecond(): Instant instantFromEpochMilli
For example, the current moment in time can be obtained using the default constructor or the method now(): Instant instant = new Instant() Custom Date and TimeĪn Instant represents the number of milliseconds from until a given moment in time. The constructors accept a object and also, we can use the toDate() method to return a object: LocalDateTime currentDateTimeFromJavaDate = new LocalDateTime(new Date()) ĭate currentJavaDate = currentDateTimeFromJavaDate.toDate() 5.2. LocalTime localTime = currentDateAndTime.toLocalTime() Īll the above methods have an overloaded method which accepts a DateTimeZone object to help us represent the date or time in the specified time zone: LocalDate currentDate = LocalDate.now(DateTimeZone.forID("America/Chicago")) Īlso, Joda-Time offers excellent integration with the Java Date and Time API. LocalDate localDate = currentDateAndTime.toLocalDate() When time is not necessary we can convert it to a LocalDate with the method toLocalDate(), and when we only need the time we can use toLocalTime() to obtain a LocalTime object: DateTime dateTime = currentDateAndTime.toDateTime()
We can obtain a DateTime object (which takes into account the time zone) by using the method toDateTime(). Now, using currentDateAndTime, we can convert it to the other types of objects modeling date and time. To obtain a representation of the current date and time without considering the time zone, we can use LocalDateTime: LocalDateTime currentDateAndTime = LocalDateTime.now() When we need just the current time, without date information, we can use the LocalTime class: LocalTime currentTime = LocalTime.now()
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