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ChronoZonedDateTime toInstant() method in Java with Examples

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The toInstant() method of a ChronoZonedDateTime class is used to convert this ChronoZonedDateTime to the Instant.

Syntax:

default Instant toInstant()

Parameters: This method do not accepts any parameter.

Return value: This method returns Instant which is the same Instant represented by this ChronoZonedDateTime.

Below programs illustrate the toInstant() method:

Program 1:




// Java program to demonstrate
// ChronoZonedDateTime.toInstant() method
  
import java.time.*;
import java.time.chrono.*;
import java.time.chrono.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create ChronoZonedDateTime object
        ChronoZonedDateTime time
            = ZonedDateTime
                  .parse(
                      "2018-12-06T19:21:12.123+05:30[Asia/Calcutta]");
  
        // print ChronoZonedDateTime
        System.out.println("ChronoZonedDateTime: "
                           + time);
  
        // print result
        System.out.println("Instant: "
                           + time.toInstant());
    }
}


Output:

ChronoZonedDateTime: 2018-12-06T19:21:12.123+05:30[Asia/Calcutta]
Instant: 2018-12-06T13:51:12.123Z

Program 2:




// Java program to demonstrate
// ChronoZonedDateTime.toInstant() method
  
import java.time.*;
import java.time.chrono.*;
import java.time.chrono.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create ChronoZonedDateTime object
        ChronoZonedDateTime time
            = ZonedDateTime.parse(
                "1918-10-25T23:12:38.543+02:00[Europe/Paris]");
  
        // print ChronoZonedDateTime
        System.out.println("ChronoZonedDateTime: "
                           + time);
  
        // print result
        System.out.println("Instant: "
                           + time.toInstant());
    }
}


Output:

ChronoZonedDateTime: 1918-10-25T23:12:38.543Z[Europe/Paris]
Instant: 1918-10-25T23:12:38.543Z

Reference: https://docs.oracle.com/javase/9/docs/api/java/time/chrono/ChronoZonedDateTime.html#toInstant–



Last Updated : 28 May, 2019
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