The java.util.GregorianCalendar.setTimeZone() method is an in-built method in Java which modifies the current time zone to a new time zone according to the parameter passed.
Syntax:
public void setTimeZone(TimeZone tz)
Parameters: The method takes one parameter tz of TimeZone object which specifies the new time zone value.
Return Values: This method does not return any value.
Examples:
Input : IST Output : India Standard Time Input : UTC Output : Coordinated Universal Time
Below programs illustrate the java.util.GregorianCalendar.setTimeZone() function in Java:
Program 1:
// Java Program to illustrate // GregorianCalendar.setTimeZone() // function import java.io.*;
import java.util.*;
class GFG {
public static void main(String[] args) {
// Create a new calendar
GregorianCalendar cal = (GregorianCalendar)
GregorianCalendar.getInstance();
// Display the current date and time
System.out.println( "" + cal.getTime());
System.out.println( "Current Time Zone : " +
cal.getTimeZone().getDisplayName());
// Convert to another time zone
cal.setTimeZone(TimeZone.getTimeZone( "CST" ));
System.out.println( "New Time Zone : " +
cal.getTimeZone().getDisplayName());
}
} |
Output:
Wed Jul 25 11:11:14 UTC 2018 Current Time Zone : Coordinated Universal Time New Time Zone : Central Standard Time
Program 2:
// Java Program to illustrate // GregorianCalendar.setTimeZone() // function import java.io.*;
import java.util.*;
class GFG {
public static void main(String[] args) {
// Create a new calendar
GregorianCalendar cal = (GregorianCalendar)
GregorianCalendar.getInstance();
// Display the current date and time
System.out.println( "" + cal.getTime());
System.out.println( "Current Time Zone : " +
cal.getTimeZone().getDisplayName());
// Convert to another time zone
cal.setTimeZone(TimeZone.getTimeZone( "IST" ));
System.out.println( "New Time Zone : " +
cal.getTimeZone().getDisplayName());
}
} |
Output:
Wed Jul 25 11:11:21 UTC 2018 Current Time Zone : Coordinated Universal Time New Time Zone : India Standard Time
Reference: https://docs.oracle.com/javase/7/docs/api/java/util/GregorianCalendar.html#setTimeZone()