Java TimeZone inDaylightTime() Method

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Description

The Java TimeZone inDaylightTime(Date date) method is used to query if the given date is in daylight savings time in this time zone.

Declaration

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

 public abstract boolean inDaylightTime(Date date) 

Parameters

date − This is the given Date

Return Value

The method call returns true if the given date is in daylight savings time, false, otherwise.

Exception

NA

Checking a GMT TimeZone to be in DayLight Saving Time Example

The following example shows the usage of Java TimeZone inDaylightTime(Date) method to check if a given date is in daylight saving time. We've created a TimeZone using GMT and a date using Date object with current time. Then we've checked date being in daylight savings using inDaylightTime() ethod and printed the status.

 package com.tutorialspoint; import java.time.Instant; import java.util.Date; import java.util.TimeZone; public class TimeZoneDemo { public static void main( String args[] ) { // create simple time zone object TimeZone stobj1 = new SimpleTimeZone(820,"GMT"); // create date Date date = Date.from(Instant.now()); // check day light boolean daylight = stobj1.inDaylightTime(date); // checking the value of day light System.out.println("Is in day light : " + daylight); } } 

Output

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

 Is in day light : false 

Checking a US TimeZone to be in DayLight Saving Time Example

The following example shows the usage of Java TimeZone inDaylightTime(Date) method to check if a given date is in daylight saving time. We've created a TimeZone using US and a date using Date object with current time. Then we've checked date being in daylight savings using inDaylightTime() ethod and printed the status.

 package com.tutorialspoint; import java.time.Instant; import java.util.Date; import java.util.TimeZone; public class TimeZoneDemo { public static void main( String args[] ) { // create simple time zone object TimeZone stobj1 = new SimpleTimeZone(820,"US"); // create date Date date = Date.from(Instant.now()); // check day light boolean daylight = stobj1.inDaylightTime(date); // checking the value of day light System.out.println("Is in day light : " + daylight); } } 

Output

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

 Is in day light : false 

Checking a BST TimeZone to be in DayLight Saving Time Example

The following example shows the usage of Java TimeZone inDaylightTime(Date) method to check if a given date is in daylight saving time. We've created a TimeZone using BST and a date using Date object with current time. Then we've checked date being in daylight savings using inDaylightTime() ethod and printed the status.

 package com.tutorialspoint; import java.time.Instant; import java.util.Date; import java.util.TimeZone; public class TimeZoneDemo { public static void main( String args[] ) { // create simple time zone object TimeZone stobj1 = new TimeZone(820,"BST"); // create date Date date = Date.from(Instant.now()); // check day light boolean daylight = stobj1.inDaylightTime(date); // checking the value of day light System.out.println("Is in day light : " + daylight); } } 

Output

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

 Is in day light : false