Java TimeZone useDaylightTime() Method

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Description

The Java TimeZone useDaylightTime() method is used to query if this time zone uses daylight savings time.

Declaration

Following is the declaration for java.util.TimeZone.useDaylightTime() method.

public abstract boolean useDaylightTime()

Parameters

NA

Return Value

The method call returns true if this time zone uses daylight savings time, false, otherwise.

Exception

NA

Checking If GMT Timezone is Using Daylight Savings Time or Not Example

The following example shows the usage of Java TimeZone useDaylightTime() method to check if this time zone is in daylight saving time. We've created a SimpleTimeZone using GMT. Then we've checked date being in daylight savings using useDaylightTime() ethod and printed the status.

package com.tutorialspoint;

import java.util.SimpleTimeZone;
import java.util.TimeZone;

public class TimeZoneDemo {
   public static void main( String args[] ) {
      
      // create simple time zone object
      TimeZone stobj = new SimpleTimeZone(820,"GMT");

      // checking day light time  
      System.out.println("Use day light time : " + stobj.useDaylightTime());
   }      
}

Output

Let us compile and run the above program, this will produce the following result.

Use day light time : false

Checking If BST Timezone is Using Daylight Savings Time or Not Example

The following example shows the usage of Java TimeZone useDaylightTime() method to check if this time zone is in daylight saving time. We've created a SimpleTimeZone using BST. Then we've checked date being in daylight savings using useDaylightTime() ethod and printed the status.

package com.tutorialspoint;

import java.util.SimpleTimeZone;
import java.util.TimeZone;

public class TimeZoneDemo {
   public static void main( String args[] ) {
      
      // create simple time zone object
      TimeZone stobj = new SimpleTimeZone(820,"BST");

      // checking day light time  
      System.out.println("Use day light time : " + stobj.useDaylightTime());
   }      
}

Output

Let us compile and run the above program, this will produce the following result.

Use day light time : false

Checking If IST Timezone is Using Daylight Savings Time or Not Example

The following example shows the usage of Java TimeZone useDaylightTime() method to check if this time zone is in daylight saving time. We've created a SimpleTimeZone using IST. Then we've checked date being in daylight savings using useDaylightTime() ethod and printed the status.

package com.tutorialspoint;

import java.util.SimpleTimeZone;
import java.util.TimeZone;

public class TimeZoneDemo {
   public static void main( String args[] ) {
      
      // create simple time zone object
      TimeZone stobj = new SimpleTimeZone(820,"IST");

      // checking day light time  
      System.out.println("Use day light time : " + stobj.useDaylightTime());
   }      
}

Output

Let us compile and run the above program, this will produce the following result.

Use day light time : false