The toInstant() method of a ChronoLocalDateTime class is used to convert this ChronoLocalDateTime to an Instant. The method combines this ChronoLocalDateTime with the offset passed as parameters to calculate the Instant.
Syntax:
default Instant toInstant(ZoneOffset offset)
Parameters: This method accepts a parameters offset which is the zone offset.
Return value: This method returns Instant which is the Instant of this ChronoLocalDateTime
Below programs illustrate the toInstant() method:
Program 1:
// Java program to demonstrate// ChronoLocalDateTime.toInstant() method import java.time.*;import java.time.chrono.*; public class GFG { public static void main(String[] args) { // create ChronoLocalDateTime object ChronoLocalDateTime time = LocalDateTime .parse("2019-12-31T19:15:30"); // print ChronoLocalDateTime System.out.println("ChronoLocalDateTime: " + time); // create ZoneId ZoneOffset zone = ZoneOffset.of("Z"); // print ZoneId System.out.println("Passed ZoneOffset: " + zone); // print result System.out.println("Instant: " + time.toInstant(zone)); }} |
Output:
ChronoLocalDateTime: 2019-12-31T19:15:30 Passed ZoneOffset: Z Instant: 2019-12-31T19:15:30Z
Program 2:
// Java program to demonstrate// ChronoLocalDateTime.toInstant() method import java.time.*;import java.time.chrono.*; public class GFG { public static void main(String[] args) { // create ChronoLocalDateTime object ChronoLocalDateTime time = LocalDateTime.parse( "2018-10-25T23:12:31.123"); // print ChronoLocalDateTime System.out.println("ChronoLocalDateTime: " + time); // create ZoneId ZoneOffset zone = ZoneOffset.of("Z"); // print ZoneId System.out.println("Passed ZoneOffset: " + zone); // print result System.out.println("Instant: " + time.toInstant(zone)); }} |
Output:
ChronoLocalDateTime: 2018-10-25T23:12:31.123 Passed ZoneOffset: Z Instant: 2018-10-25T23:12:31.123Z
