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