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ZonedDateTime withZoneSameInstant() method in Java with Examples

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The withZoneSameInstant() method of a ZonedDateTime class is used to return a copy of this ZonedDateTime 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 timeline have no effect on the result.

Syntax:

public ZonedDateTime withZoneSameInstant(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 ZonedDateTime based on this date-time with the requested zone.

Exception Thrown: DateTimeException if the result exceeds the supported date range.

Example 1:

Java




// Java program to demonstrate
// ZonedDateTime.withZoneSameInstant() method
 
// Importing required classes
import java.time.*;
 
// Main class
public class GFG {
 
    // Main driver method
    public static void main(String[] args)
    {
        // Creating a ZonedDateTime object
        ZonedDateTime zonedDT = ZonedDateTime.parse(
            "2018-12-06T19:21:12.123+05:30[Asia/Calcutta]");
 
        // Printing ZonedDateTime of Calcutta on console
        System.out.println("ZonedDateTime of Calcutta: "
                           + zonedDT);
 
        // Applying withZoneSameInstant()
        ZonedDateTime zonedDT2
            = zonedDT.withZoneSameInstant(
                ZoneId.of("Pacific/Fiji"));
 
        // Now printing ZonedDateTime of Fuji
        // after withZoneSameInstant()
        System.out.println("ZonedDateTime of Fuji: "
                           + zonedDT2);
    }
}


Output: 

ZonedDateTime of Calcutta: 2018-12-06T19:21:12.123+05:30[Asia/Calcutta]
ZonedDateTime of Fuji: 2018-12-07T02:51:12.123+13:00[Pacific/Fiji]

 

Example 2:

Java




// Java program to Demonstrate
// ZonedDateTime.withZoneSameInstant() method
 
// Importing required classes
import java.time.*;
 
// Main class
public class GFG {
 
    // Main driver method
    public static void main(String[] args)
    {
        // Creating a ZonedDateTime object and
        // passing date and time of Europe/Paris
        ZonedDateTime zonedDT = ZonedDateTime.parse(
            "2018-10-25T23:12:31.123+02:00[Europe/Paris]");
 
        // Printing ZonedDateTime of Paris on console
        // before applying withZoneSameInstant() method
        System.out.println("ZonedDateTime of Paris: "
                           + zonedDT);
 
        // Now applying withZoneSameInstant() method
        ZonedDateTime zonedDT2
            = zonedDT.withZoneSameInstant(
                ZoneId.of("Canada/Yukon"));
 
        // Printing ZonedDateTime
        // after applying withZoneSameInstant()
        System.out.println("ZonedDateTime of Yukon: "
                           + zonedDT2);
    }
}


Output

ZonedDateTime of Paris: 2018-10-25T23:12:31.123+02:00[Europe/Paris]
ZonedDateTime of Yukon: 2018-10-25T14:12:31.123-07:00[Canada/Yukon]


Last Updated : 23 Mar, 2022
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