Examples with ZoneId java.time.ZoneId used on opensource projects

Example 86 with ZoneId

use of java.time.ZoneId in project tutorials by eugenp.

the class DaylightSavingTimeJavaTimeExamplesTest method givenItalianTimeZone_WhenDSTHappens_ThenCorrectlyShiftTimeZone.

@Test
public void givenItalianTimeZone_WhenDSTHappens_ThenCorrectlyShiftTimeZone() throws ParseException {
    ZoneId italianZoneId = ZoneId.of("Europe/Rome");
    LocalDateTime localDateTimeBeforeDST = LocalDateTime.of(2018, 3, 25, 1, 55);
    System.out.println(localDateTimeBeforeDST);
    assertThat(localDateTimeBeforeDST.toString()).isEqualTo("2018-03-25T01:55");
    ZonedDateTime zonedDateTimeBeforeDST = localDateTimeBeforeDST.atZone(italianZoneId);
    prettyPrint(zonedDateTimeBeforeDST);
    assertThat(zonedDateTimeBeforeDST.toString()).isEqualTo("2018-03-25T01:55+01:00[Europe/Rome]");
    ZonedDateTime zonedDateTimeAfterDST = zonedDateTimeBeforeDST.plus(10, ChronoUnit.MINUTES);
    prettyPrint(zonedDateTimeAfterDST);
    assertThat(zonedDateTimeAfterDST.toString()).isEqualTo("2018-03-25T03:05+02:00[Europe/Rome]");
    Long deltaBetweenDatesInMinutes = ChronoUnit.MINUTES.between(zonedDateTimeBeforeDST, zonedDateTimeAfterDST);
    assertThat(deltaBetweenDatesInMinutes).isEqualTo(10);
}

Example 87 with ZoneId

use of java.time.ZoneId in project tutorials by eugenp.

the class ConversionExample method main.

public static void main(String[] args) {
    Instant instantFromCalendar = GregorianCalendar.getInstance().toInstant();
    ZonedDateTime zonedDateTimeFromCalendar = new GregorianCalendar().toZonedDateTime();
    Date dateFromInstant = Date.from(Instant.now());
    GregorianCalendar calendarFromZonedDateTime = GregorianCalendar.from(ZonedDateTime.now());
    Instant instantFromDate = new Date().toInstant();
    ZoneId zoneIdFromTimeZone = TimeZone.getTimeZone("PST").toZoneId();
}

Example 88 with ZoneId

use of java.time.ZoneId in project tutorials by eugenp.

the class UseZonedDateTimeUnitTest method givenZoneId_thenZonedDateTime.

@Test
public void givenZoneId_thenZonedDateTime() {
    ZoneId zoneId = ZoneId.of("Europe/Paris");
    ZonedDateTime zonedDatetime = zonedDateTime.getZonedDateTime(LocalDateTime.parse("2016-05-20T06:30"), zoneId);
    Assert.assertEquals(zoneId, ZoneId.from(zonedDatetime));
}

Example 89 with ZoneId

use of java.time.ZoneId in project tutorials by eugenp.

the class TimezoneDisplay method getTimeZoneList.

public List<String> getTimeZoneList(OffsetBase base) {
    Set<String> availableZoneIds = ZoneId.getAvailableZoneIds();
    LocalDateTime now = LocalDateTime.now();
    return availableZoneIds.stream().map(ZoneId::of).sorted(new ZoneComparator()).map(id -> String.format("(%s%s) %s", base, getOffset(now, id), id.getId())).collect(Collectors.toList());
}

Example 90 with ZoneId

use of java.time.ZoneId in project Java8 by huhuhuHR.

the class TimezonesTest method main.

public static void main(String[] args) {
    Set<String> set = ZoneId.getAvailableZoneIds();
    set.forEach(System.out::println);
    ZoneId zone1 = ZoneId.of("Europe/Berlin");
    ZoneId zone2 = ZoneId.of("Brazil/East");
    System.out.println("------------------------------");
    System.out.println(zone1.getRules());
    System.out.println(zone2.getRules());
}