ChronoZonedDateTime withZoneSameLocal() method in Java with Examples

The withZoneSameLocal() method of a ChronoZonedDateTime interface used to return a copy of this ChronoZonedDateTime object by changing the time-zone and without the instant.This method is based on retaining the same instant, thus gaps and overlaps in the local time-line have no effect on the result.

Syntax:

ChronoZonedDateTime withZoneSameLocal(ZoneId zone)

Parameters: This method accepts one single parameter zone the time-zone to change to. It should not be null.



Return value: This method returns a ChronoZonedDateTime based on this date-time with the requested zone.

Below programs illustrate the withZoneSameLocal() method:

Program 1:

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// Java program to demonstrate
// ChronoZonedDateTime.withZoneSameLocal() method
  
import java.time.*;
import java.time.chrono.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create a ChronoZonedDateTime object
        ChronoZonedDateTime zonedDT
            = ZonedDateTime
                  .parse(
                      "2018-12-06T19:21:12.123+05:30[Asia/Calcutta]");
  
        // print ChronoZonedDateTime
        System.out.println("ChronoZonedDateTime of Calcutta: "
                           + zonedDT);
  
        // apply withZoneSameLocal()
        ChronoZonedDateTime zonedDT2
            = zonedDT
                  .withZoneSameLocal(
                      ZoneId.of("Pacific/Fiji"));
  
        // print ChronoZonedDateTime after withZoneSameLocal()
        System.out.println("ChronoZonedDateTime of Fuji: "
                           + zonedDT2);
    }
}

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Output:

ChronoZonedDateTime of Calcutta: 2018-12-06T19:21:12.123+05:30[Asia/Calcutta]
ChronoZonedDateTime of Fuji: 2018-12-06T19:21:12.123+13:00[Pacific/Fiji]

Program 2:

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// Java program to demonstrate
// ChronoZonedDateTime.withZoneSameLocal() method
  
import java.time.*;
import java.time.chrono.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create a ChronoZonedDateTime object
        ChronoZonedDateTime zonedDT
            = ZonedDateTime
                  .parse(
                      "2018-10-25T23:12:31.123+02:00[Europe/Paris]");
  
        // print ChronoZonedDateTime
        System.out.println("ChronoZonedDateTime of Calcutta: "
                           + zonedDT);
  
        // apply withZoneSameLocal()
        ChronoZonedDateTime zonedDT2
            = zonedDT
                  .withZoneSameLocal(
                      ZoneId.of("Canada/Yukon"));
  
        // print ChronoZonedDateTime after withZoneSameLocal()
        System.out.println("ChronoZonedDateTime of yukon: "
                           + zonedDT2);
    }
}

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Output:

ChronoZonedDateTime of Calcutta: 2018-10-25T23:12:31.123+02:00[Europe/Paris]
ChronoZonedDateTime of yukon: 2018-10-25T23:12:31.123-07:00[Canada/Yukon]

Reference: https://docs.oracle.com/javase/9/docs/api/java/time/chrono/ChronoZonedDateTime.html#withZoneSameLocal-java.time.ZoneId-



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