Java 8 Clock getZone() method with Examples

Last Updated : 10 May, 2019

Java Clock class is part of Date Time API, java.time.Clock, of Java. The Java Date Time API was added from Java version 8.

getZone() method of Clock class returns the time-zone used to create dates and times of Clock class. Every Clock class needs a Time Zone for obtaining the current instant of time and convert that instance to a date or time. So this method returns the time-zone used for this process.

Syntax:

public abstract ZoneId getZone()

Returns Value: This Method returns the time-zone used to create Clock class.

Example:

Input:: 
a clock class Object e.g Clock.systemUTC()

Output::
TimeZone e.g. Z

Explanation:: 
when Clock.getZone() is called, then it returns a Time Zone used in Class Object

Below programs illustrates getZone() method of java.time.Clock class:

Program 1: Get the TimeZone of the Clock obejct, created with systemDefaultZone, using getZone()

// Java program to demonstrate getZone() 
// method of Clock class 
  
import java.time.*; 
  
// create class 
public class getZoneMethodDemo { 
  
    // Main method 
    public static void main(String[] args) 
    { 
  
        // create Clock Object 
        Clock clock = Clock.systemDefaultZone(); 
  
        // get TimeZone of Clock object 
        // using  getZone() method 
        ZoneId zoneid = clock.getZone(); 
  
        // print details of TimeZone 
        System.out.println("ZoneId for class "
                           + clock + " is " + zoneid); 
    } 
} 

Output:

ZoneId for class SystemClock[Etc/UTC] is Etc/UTC

Program 2:Get TimeZone of Clock object, with Zone “Asia/calcutta”, using getZone().

// Java program to demonstrate getZone()  
// method of Clock class 
  
import java.time.*; 
  
// create class 
public class getZoneMethodDemo { 
  
    // Main method 
    public static void main(String[] args) 
    { 
  
        // create a Zone Id for Calcutta 
        ZoneId zoneId = ZoneId.of("Asia/Calcutta"); 
  
        // create Clock Object by passing zoneID 
        Clock clock = Clock.system(zoneId); 
  
        // get TimeZone of Clock object 
        // using  getZone() method 
        // and save ZoneId as zoneid variable 
        ZoneId zoneid = clock.getZone(); 
  
        // print details of TimeZone 
        System.out.println("ZoneId for clock is "
                           + zoneid); 
    } 
} 

Output:

ZoneId for clock is Asia/Calcutta

Reference:
https://docs.oracle.com/javase/8/docs/api/java/time/Clock.html#getZone–

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