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Showing content from https://www.tutorialspoint.com/java/util/calendar_toinstant.htm below:

Java Calendar toInstant() Method

Java Calendar toInstant() Method Description

The Java Calendar toInstant() method converts the calendar object to an Instant. This newly created instance represents the same point on the time-line as this calendar.

Declaration

Following is the declaration for java.util.Calendar.toInstant() method

public final Instant toInstant()

Parameters

Return Value

This method returns the instant representing the same point on the time-line.

Exception

Getting Instant from Current Dated Calendar Instance Example

The following example shows the usage of Java Calendar toInstant() method. We're creating an instance of a Calendar of current date using getInstance() method and printing the time of the calendar instance. Then we're print the corresponding instant using toInstant() method.

package com.tutorialspoint;

import java.util.Calendar;

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

      // create a calendar
      Calendar cal = Calendar.getInstance();

      // print current time
      System.out.println("Current Time:" + cal.getTime() );
    
      // print the instant
      System.out.println("Instant:" + cal.toInstant());
   }
}

Output

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

Current Time:Wed Sep 28 18:31:45 IST 2022
Instant:2022-09-28T13:01:45.674Z

Getting Instant from Current Dated GregorianCalendar Instance Example

The following example shows the usage of Java Calendar toInstant() method. We're creating an instance of a Calendar of current date using GregorianCalendar() method and printing the time of the calendar instance. Then we're print the corresponding instant using toInstant() method.

package com.tutorialspoint;

import java.util.Calendar;
import java.util.GregorianCalendar;

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

      // create a calendar
      Calendar cal = new GregorianCalendar();

      // print current time
      System.out.println("Current Time:" + cal.getTime() );
    
      // print the instant
      System.out.println("Instant:" + cal.toInstant());
   }
}

Output

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

Current Time:Wed Sep 28 18:32:21 IST 2022
Instant:2022-09-28T13:02:21.330Z

Getting Instant from Given Dated GregorianCalendar Instance Example

The following example shows the usage of Java Calendar toInstant() method. We're creating an instance of a Calendar of particular date using GregorianCalendar() method and printing the time of the calendar instance. Then we're print the corresponding instant using toInstant() method.

package com.tutorialspoint;

import java.util.Calendar;
import java.util.GregorianCalendar;

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

      // create a calendar
      Calendar cal = new GregorianCalendar(2022,8,27);

      // print current time
      System.out.println("Current Time:" + cal.getTime() );
    
      // print the instant
      System.out.println("Instant:" + cal.toInstant());
   }
}

Output

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

Current Time:Tue Sep 27 00:00:00 IST 2022
Instant:2022-09-26T18:30:00Z

java_util_calendar.htm

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