Java Convert LocalDate and LocalTime to ZonedDateTime with Specified Time Zone

Tags: Java LocalDate Java LocalTime Java ZonedDateTime Java 8

In this Java tutorial, we learn how to convert the LocalDate and LocalTime values into a ZonedDateTime value in specified time zone or a system default time zone in Java programming language.

How to convert LocalDate and LocalTime to ZonedDateTime

In Java, with given LocalDate, LocalTime values and a specified ZoneId value we can use the ZonedDateTime.of(LocalDate date, LocalTime time, ZoneId zone) method to convert it to a ZonedDateTime value as the following example Java program.

ZonedDateTimeExample1.java 

import java.time.LocalDate;
import java.time.LocalTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;

public class ZonedDateTimeExample1 {
    public static void main(String... args) {
        LocalDate localDate = LocalDate.of(2022, 8, 1);
        LocalTime localTime = LocalTime.of(8, 30, 15);
        ZoneId zoneId = ZoneId.of("Australia/Sydney");

        // Convert LocalDate, LocalTime to ZonedDateTime with specified time zone
        ZonedDateTime zonedDateTime = ZonedDateTime.of(localDate, localTime, zoneId);

        System.out.println(zonedDateTime);
    }
}
The output as below. 
2022-08-01T08:30:15+10:00[Australia/Sydney]

The following Java example code to show to convert to ZonedDateTime in system default time zone using the ZoneId.systemDefault() method to get time zone.

ZonedDateTimeExample2.java 

import java.time.LocalDate;
import java.time.LocalTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;

public class ZonedDateTimeExample2 {
    public static void main(String... args) {
        LocalDate localDate = LocalDate.of(2022, 8, 1);
        LocalTime localTime = LocalTime.of(8, 30, 15);
        ZoneId zoneId = ZoneId.systemDefault();

        // Convert LocalDate, LocalTime to ZonedDateTime with system default time zone
        ZonedDateTime zonedDateTime = ZonedDateTime.of(localDate, localTime, zoneId);

        System.out.println(zonedDateTime);
    }
}
The output as below. 
2022-08-01T08:30:15+07:00[Asia/Bangkok]

Happy Coding 😊

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