Examples of org.threeten.bp.Instant

org.threeten.bp.Instant
l.cam.ac.uk/~mgk25/time/utc-sls/">UTC-SLS effectively smoothes the leap-second over the last 1000 seconds of the day, making each of the last 1000 "seconds" 1/1000th longer or shorter than a real SI second.
One final problem is the definition of the agreed international civil time before the introduction of modern UTC in 1972. This includes the Java epoch of {@code 1970-01-01}. It is intended that instants before 1972 be interpreted based on the solar day divided into 86400 subdivisions.
The Java time-scale is used by all date-time classes. This includes {@code Instant}, {@code LocalDate}, {@code LocalTime}, {@code OffsetDateTime}, {@code ZonedDateTime} and {@code Duration}.
Specification for implementors
This class is immutable and thread-safe.

    @Test
    public void test_parse_fromField_InstantSeconds() {
        DateTimeFormatter fmt = new DateTimeFormatterBuilder()
            .appendValue(INSTANT_SECONDS).toFormatter();
        TemporalAccessor acc = fmt.parse("86402");
        Instant expected = Instant.ofEpochSecond(86402);
        assertEquals(acc.isSupported(INSTANT_SECONDS), true);
        assertEquals(acc.isSupported(NANO_OF_SECOND), true);
        assertEquals(acc.isSupported(MICRO_OF_SECOND), true);
        assertEquals(acc.isSupported(MILLI_OF_SECOND), true);
        assertEquals(acc.getLong(INSTANT_SECONDS), 86402L);

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    @Test
    public void test_parse_fromField_InstantSeconds_NanoOfSecond() {
        DateTimeFormatter fmt = new DateTimeFormatterBuilder()
            .appendValue(INSTANT_SECONDS).appendLiteral('.').appendValue(NANO_OF_SECOND).toFormatter();
        TemporalAccessor acc = fmt.parse("86402.123456789");
        Instant expected = Instant.ofEpochSecond(86402, 123456789);
        assertEquals(acc.isSupported(INSTANT_SECONDS), true);
        assertEquals(acc.isSupported(NANO_OF_SECOND), true);
        assertEquals(acc.isSupported(MICRO_OF_SECOND), true);
        assertEquals(acc.isSupported(MILLI_OF_SECOND), true);
        assertEquals(acc.getLong(INSTANT_SECONDS), 86402L);

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            }
        }
    }


    private void mergeInstantFields0(ZoneId selectedZone) {
        Instant instant = Instant.ofEpochSecond(fieldValues.remove(INSTANT_SECONDS));
        ChronoZonedDateTime<?> zdt = chrono.zonedDateTime(instant, selectedZone);
        if (date == null) {
            addObject(zdt.toLocalDate());
        } else {
            resolveMakeChanges(INSTANT_SECONDS, zdt.toLocalDate());

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    }


    public void test_London_preTimeZones() {
        ZoneRules test = europeLondon();
        ZonedDateTime old = createZDT(1800, 1, 1, ZoneOffset.UTC);
        Instant instant = old.toInstant();
        ZoneOffset offset = ZoneOffset.ofHoursMinutesSeconds(0, -1, -15);
        assertEquals(test.getOffset(instant), offset);
        checkOffset(test, old.toLocalDateTime(), offset, 1);
        assertEquals(test.getStandardOffset(instant), offset);
        assertEquals(test.getDaylightSavings(instant), Duration.ZERO);

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    public void test_London_getStandardOffset() {
        ZoneRules test = europeLondon();
        ZonedDateTime zdt = createZDT(1840, 1, 1, ZoneOffset.UTC);
        while (zdt.getYear() < 2010) {
            Instant instant = zdt.toInstant();
            if (zdt.getYear() < 1848) {
                assertEquals(test.getStandardOffset(instant), ZoneOffset.ofHoursMinutesSeconds(0, -1, -15));
            } else if (zdt.getYear() >= 1969 && zdt.getYear() < 1972) {
                assertEquals(test.getStandardOffset(instant), OFFSET_PONE);
            } else {

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    }


    public void test_Paris_preTimeZones() {
        ZoneRules test = europeParis();
        ZonedDateTime old = createZDT(1800, 1, 1, ZoneOffset.UTC);
        Instant instant = old.toInstant();
        ZoneOffset offset = ZoneOffset.ofHoursMinutesSeconds(0, 9, 21);
        assertEquals(test.getOffset(instant), offset);
        checkOffset(test, old.toLocalDateTime(), offset, 1);
        assertEquals(test.getStandardOffset(instant), offset);
        assertEquals(test.getDaylightSavings(instant), Duration.ZERO);

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    public void test_Paris_getStandardOffset() {
        ZoneRules test = europeParis();
        ZonedDateTime zdt = createZDT(1840, 1, 1, ZoneOffset.UTC);
        while (zdt.getYear() < 2010) {
            Instant instant = zdt.toInstant();
            if (zdt.toLocalDate().isBefore(LocalDate.of(1911, 3, 11))) {
                assertEquals(test.getStandardOffset(instant), ZoneOffset.ofHoursMinutesSeconds(0, 9, 21));
            } else if (zdt.toLocalDate().isBefore(LocalDate.of(1940, 6, 14))) {
                assertEquals(test.getStandardOffset(instant), OFFSET_ZERO);
            } else if (zdt.toLocalDate().isBefore(LocalDate.of(1944, 8, 25))) {

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    }


    public void test_NewYork_preTimeZones() {
        ZoneRules test = americaNewYork();
        ZonedDateTime old = createZDT(1800, 1, 1, ZoneOffset.UTC);
        Instant instant = old.toInstant();
        ZoneOffset offset = ZoneOffset.of("-04:56:02");
        assertEquals(test.getOffset(instant), offset);
        checkOffset(test, old.toLocalDateTime(), offset, 1);
        assertEquals(test.getStandardOffset(instant), offset);
        assertEquals(test.getDaylightSavings(instant), Duration.ZERO);

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    public void test_NewYork_getStandardOffset() {
        ZoneRules test = americaNewYork();
        ZonedDateTime dateTime = createZDT(1860, 1, 1, ZoneOffset.UTC);
        while (dateTime.getYear() < 2010) {
            Instant instant = dateTime.toInstant();
            if (dateTime.toLocalDate().isBefore(LocalDate.of(1883, 11, 18))) {
                assertEquals(test.getStandardOffset(instant), ZoneOffset.of("-04:56:02"));
            } else {
                assertEquals(test.getStandardOffset(instant), ZoneOffset.ofHours(-5));
            }

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    //-----------------------------------------------------------------------
    // now(Clock)
    //-----------------------------------------------------------------------
    @Test
    public void now_Clock() {
        Instant instant = LocalDateTime.of(2010, 12, 31, 0, 0).toInstant(ZoneOffset.UTC);
        Clock clock = Clock.fixed(instant, ZoneOffset.UTC);
        MonthDay test = MonthDay.now(clock);
        assertEquals(test.getMonth(), Month.DECEMBER);
        assertEquals(test.getDayOfMonth(), 31);
    }

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Examples of org.threeten.bp.Instant

Specification for implementors

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