ZonedDateTime withFixedOffsetZone() method in Java with Examples

The withFixedOffsetZone() method of a ZonedDateTime class is used to return a copy of this ZonedDateTime object with the zone ID set to the offset. This method returns a ZonedDateTime where the zone ID is the same as getOffset().The local date-time, offset and instant of the returned ZonedDateTime will be the same as in this date-time.

Syntax:

public ZonedDateTime withFixedOffsetZone()

Parameters: This method accepts no parameters.

Return value: This method returns a ZonedDateTime with the zone ID set to the offset.

Below programs illustrate the withFixedOffsetZone() method:

Program 1:

// Java program to demonstrate
// ZonedDateTime.withFixedOffsetZone() method

import java.time.*;

public class GFG {
    public static void main(String[] args)
    {

        // create a ZonedDateTime object
        ZonedDateTime zonedDT
            = ZonedDateTime
                  .ofLocal(
                      LocalDateTime.of(2018, 11, 4, 1, 25, 43),
                      ZoneId.of("US/Central"),
                      ZoneOffset.ofHours(-6));

        // print ZonedDateTime
        System.out.println("Before withFixedOffsetZone(): "
                           + zonedDT);

        // apply withFixedOffsetZone()
        ZonedDateTime zonedDT2
            = zonedDT.withFixedOffsetZone();

        // print ZonedDateTime after withFixedOffsetZone()
        System.out.println("After withFixedOffsetZone(): "
                           + zonedDT2);
    }
}

Output:

Before withFixedOffsetZone(): 2018-11-04T01:25:43-06:00[US/Central]
After withFixedOffsetZone(): 2018-11-04T01:25:43-06:00

Program 2:

// Java program to demonstrate
// ZonedDateTime.withFixedOffsetZone() method

import java.time.*;

public class GFG {
    public static void main(String[] args)
    {

        // create a ZonedDateTime object
        ZonedDateTime zonedDT
            = ZonedDateTime.now();

        // print ZonedDateTime
        System.out.println("Before withFixedOffsetZone(): "
                           + zonedDT);

        // apply withFixedOffsetZone()
        ZonedDateTime zonedDT2
            = zonedDT.withFixedOffsetZone();

        // print ZonedDateTime after withFixedOffsetZone()
        System.out.println("After withFixedOffsetZone(): "
                           + zonedDT2);
    }
}

Output:

Before withFixedOffsetZone(): 2018-12-17T05:16:41.417Z[Etc/UTC]
After withFixedOffsetZone(): 2018-12-17T05:16:41.417Z

Reference: https://docs.oracle.com/javase/10/docs/api/java/time/ZonedDateTime.html#withFixedOffsetZone()