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Calendar setTimeZone() Method in Java with Examples

Last Updated : 06 Mar, 2019
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The setTimeZone(TimeZone time_zone) method in Calendar class takes a Time Zone value as a parameter and modifies or set the timezone represented by this Calendar. Syntax:
public void setTimeZone(TimeZone time_zone)
Parameters: The method takes one parameter time_zone of Date type and refers to the given date that is to be set. Return Value: The method does not return any value. Below programs illustrate the working of setTimeZone() Method of Calendar class: Example 1: Java
// Java code to illustrate
// setTime() method

import java.util.*;

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

        // Creating calendar object
        Calendar calndr = Calendar.getInstance();

        // Displaying the current time zone
        String tz_name = calndr.getTimeZone()
                             .getDisplayName();

        System.out.println("The Current Time"
                           + " Zone: " + tz_name);

        TimeZone time_zone
            = TimeZone.getTimeZone("GMT");

        // Modifying the time zone
        calndr.setTimeZone(time_zone);

        // Displaying the modified zone
        System.out.println("Modified Zone: "
                           + calndr.getTimeZone()
                                 .getDisplayName());
    }
}
Output:
The Current Time Zone: Coordinated Universal Time
Modified Zone: Greenwich Mean Time
Example 2: Java
// Java code to illustrate
// setTimeZone() method

import java.util.*;

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

        // Creating calendar object
        Calendar calndr = Calendar.getInstance();

        // Displaying the current time zone
        String tz_name = calndr.getTimeZone()
                             .getDisplayName();

        System.out.println("The Current Time"
                           + " Zone: " + tz_name);

        TimeZone time_zone
            = TimeZone.getTimeZone("Pacific/Tahiti");

        // Modifying the time zone
        calndr.setTimeZone(time_zone);

        // Displaying the modified zone
        System.out.println("Modified Zone: "
                           + calndr.getTimeZone()
                                 .getDisplayName());
    }
}
Output:
The Current Time Zone: Coordinated Universal Time
Modified Zone: Tahiti Time
Reference: https://docs.oracle.com/javase/7/docs/api/java/util/Calendar.html#setTimeZone(java.util.TimeZone)

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