Java Instant.atOffset() Method with Examples

import java.time.Instant;
import java.time.OffsetDateTime;
import java.time.ZoneId;
import java.time.ZoneOffset;

public class InstantAtOffsetExample1 {
    public static void main(String... args) {
        Instant instant = Instant.parse("2022-07-11T08:00:30Z");

        ZoneOffset utcZoneOffset = ZoneOffset.UTC;
        ZoneOffset sydneyZoneOffset = ZoneId.of("Australia/Sydney").getRules().getOffset(Instant.now());
        ZoneOffset systemZoneOffset = ZoneId.systemDefault().getRules().getOffset(Instant.now());

        OffsetDateTime utcOffsetDateTime = instant.atOffset(utcZoneOffset);
        OffsetDateTime sydneyOffsetDateTime = instant.atOffset(sydneyZoneOffset);
        OffsetDateTime systemOffsetDateTime = instant.atOffset(systemZoneOffset);

        System.out.println("UTC OffsetDateTime: " + utcOffsetDateTime);
        System.out.println("Sydney OffsetDateTime: " + sydneyOffsetDateTime);
        System.out.println("System OffsetDateTime: " + systemOffsetDateTime);
    }
}

UTC OffsetDateTime: 2022-07-11T08:00:30Z
Sydney OffsetDateTime: 2022-07-11T18:00:30+10:00
System OffsetDateTime: 2022-07-11T15:00:30+07:00