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