The toEpochSecond() method of a LocalDate class is used to convert this LocalDate to the number of seconds since the epoch of 1970-01-01T00:00:00Z. The method combines this local date with the specified time and offsets 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:
public long toEpochSecond(LocalTime time, ZoneOffset offset)
Parameters: This method accepts two parameters time and offset which are the local time and 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:
// Java program to demonstrate // LocalDate.toEpochSecond() method import java.time.*;
public class GFG {
public static void main(String[] args)
{
// create a LocalDate object
LocalDate localD
= LocalDate.parse( "2018-12-06" );
// print LocalDate
System.out.println( "LocalDate: "
+ localD);
// create a LocalTime object
LocalTime time
= LocalTime.parse( "20:12:32" );
// print Instant
System.out.println( "Passed LocalTime: "
+ time);
// create ZoneId
ZoneOffset zone = ZoneOffset.of( "Z" );
// print ZoneId
System.out.println( "Passed ZoneOffset: "
+ zone);
// print result
System.out.println( "Epoch Second: "
+ localD.toEpochSecond(time, zone));
}
} |
Output:
LocalDate: 2018-12-06 Passed LocalTime: 20:12:32 Passed ZoneOffset: Z Epoch Second: 1544127152
Program 2:
// Java program to demonstrate // LocalDate.toEpochSecond() method import java.time.*;
public class GFG {
public static void main(String[] args)
{
// create a LocalDate object
LocalDate localD
= LocalDate.parse( "2019-01-01" );
// print LocalDate
System.out.println( "LocalDate: "
+ localD);
// create a LocalTime object
LocalTime time
= LocalTime.parse( "00:00:00" );
// print Instant
System.out.println( "Passed LocalTime: "
+ time);
// create ZoneId
ZoneOffset zone = ZoneOffset.of( "Z" );
// print ZoneId
System.out.println( "Passed ZoneOffset: "
+ zone);
// print result
System.out.println( "Epoch Second: "
+ localD.toEpochSecond(time, zone));
}
} |
Output:
LocalDate: 2019-01-01 Passed LocalTime: 00:00 Passed ZoneOffset: Z Epoch Second: 1546300800