ZoneOffsetTransition toEpochSecond() method in Java with Example

The toEpochSecond() method of java.time.zone.ZoneOffsetTransition class is used to get the epoch second for this particular zone offset transition object.

Syntax:

public long toEpochSecond()

Parameter: This method does not accept any parameter.

Return Value: This method returns the epoch second for this particular zone offset transition object.

Below are the examples to illustrate the toEpochSecond() method:

Example 1:

// Java program to demonstrate
// toEpochSecond() method

import java.util.*;
import java.io.*;
import java.time.*;
import java.time.chrono.*;
import java.time.zone.*;

public class GFG {
    public static void main(String[] argv)
    {

        // creating and initializing
        // the object of LocalDateTime
        LocalDateTime loc
            = LocalDateTime.of(
                1999, 04, 25,
                03, 24, 45, 0);

        // creating and initializing
        // the object of ZoneOffset
        ZoneOffset off1
            = ZoneOffset.ofTotalSeconds(8);

        // creating and initializing
        // the object of ZoneOffset
        ZoneOffset off2
            = ZoneOffset.ofTotalSeconds(12);

        // creating and initializing
        // ZoneOffsetTransition Object
        ZoneOffsetTransition zonetrans1
            = ZoneOffsetTransition.of(
                loc, off1, off2);

        // getting the epoch second for this object
        // by using toEpochSecond() method
        long epocsec
            = zonetrans1.toEpochSecond();

        // display the result
        System.out.println(
            "epoch second : "
            + epocsec);
    }
}

Output:

epoch second : 925010677

Example 2:

// Java program to demonstrate
// toEpochSecond() method

import java.util.*;
import java.io.*;
import java.time.*;
import java.time.chrono.*;
import java.time.zone.*;

public class GFG {
    public static void main(String[] argv)
    {

        // creating and initializing
        // the object of LocalDateTime
        LocalDateTime loc
            = LocalDateTime.of(
                1999, 04, 25,
                03, 24, 45, 0);

        // creating and initializing
        // the object of ZoneOffset
        ZoneOffset off1
            = ZoneOffset.ofTotalSeconds(12);

        // creating and initializing
        // the object of ZoneOffset
        ZoneOffset off2
            = ZoneOffset.ofTotalSeconds(8);

        // creating and initializing
        // ZoneOffsetTransition Object
        ZoneOffsetTransition zonetrans1
            = ZoneOffsetTransition.of(
                loc, off1, off2);

        // getting the epoch second for this object
        // by using toEpochSecond() method
        long epocsec
            = zonetrans1.toEpochSecond();

        // display the result
        System.out.println("epoch second : "
                           + epocsec);
    }
}

Output:

epoch second : 925010673

Reference: https://docs.oracle.com/javase/9/docs/api/java/time/zone/ZoneOffsetTransition.html#toEpochSecond–