ChronoLocalDateTime toEpochSecond() method in Java with Examples
The toEpochSecond() method of a ChronoLocalDateTime class is used to convert this ChronoLocalDateTime to the number of seconds since the epoch of 1970-01-01T00:00:00Z. The method combines this ChronoLocalDateTime with the offset passed as parameters to calculate the epoch-second value, which is the number of elapsed seconds from 1970-01-01T00:00:00Z. Instants on the timeline after the epoch are positive, earlier are negative.
Syntax:
default long toEpochSecond(ZoneOffset offset)
Parameters: This method accepts a parameters offset which is the zone offset.
Return value: This method returns long which is the number of seconds since the epoch of 1970-01-01T00:00:00Z, may be negative.
Below programs illustrate the toEpochSecond() method:
Program 1:
import java.time.*;
import java.time.chrono.*;
public class GFG {
public static void main(String[] args)
{
ChronoLocalDateTime time
= LocalDateTime
.parse( "2019-12-31T19:15:30" );
System.out.println( "ChronoLocalDateTime: "
+ time);
ZoneOffset zone = ZoneOffset.of( "Z" );
System.out.println( "Passed ZoneOffset: "
+ zone);
System.out.println( "Epoch Second: "
+ time.toEpochSecond(zone));
}
}
|
Output:
ChronoLocalDateTime: 2019-12-31T19:15:30
Passed ZoneOffset: Z
Epoch Second: 1577819730
Program 2:
import java.time.*;
import java.time.chrono.*;
public class GFG {
public static void main(String[] args)
{
ChronoLocalDateTime time
= LocalDateTime.parse(
"2018-10-25T23:12:31.123" );
System.out.println( "ChronoLocalDateTime: "
+ time);
ZoneOffset zone = ZoneOffset.of( "Z" );
System.out.println( "Passed ZoneOffset: "
+ zone);
System.out.println( "Epoch Second: "
+ time.toEpochSecond(zone));
}
}
|
Output:
ChronoLocalDateTime: 2018-10-25T23:12:31.123
Passed ZoneOffset: Z
Epoch Second: 1540509151
Reference: https://docs.oracle.com/javase/9/docs/api/java/time/chrono/ChronoLocalDateTime.html#toEpochSecond-java.time.ZoneOffset-
Last Updated :
28 May, 2019
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