The toEpochDay() method of a ChronoLocalDate interface is used to get this date as a EpochDay. The EpochDay is the count of the day from the 0 EpochDay which is the 1970-01-01 (ISO). The output will be in the ISO-8601 format yyyy-MM-dd.
Syntax:
default long toEpochDay()
Parameters: This method does not accepts any parameters.
Return value: This method returns a long value which is the EpochDay count of this date, not null.
Below programs illustrate the toEpochDay() method:
Program 1:
// Java program to demonstrate// ChronoLocalDate.toEpochDay() method  import java.time.*;import java.time.chrono.*;  public class GFG {    public static void main(String[] args)    {          // create a ChronoLocalDate object        ChronoLocalDate localD            = LocalDate.parse("2018-12-06");          // print ChronoLocalDate        System.out.println("ChronoLocalDate as EpochDay: "                           + localD.toEpochDay());    }} |
Output:
ChronoLocalDate as EpochDay: 17871
Program 2:
// Java program to demonstrate// ChronoLocalDate.toEpochDay() method  import java.time.*;import java.time.chrono.*;  public class GFG {    public static void main(String[] args)    {          // create a ChronoLocalDate object        ChronoLocalDate localD            = LocalDate.parse("2021-06-30");          // print ChronoLocalDate        System.out.println("ChronoLocalDate as EpochDay: "                           + localD.toEpochDay());    }} |
Output:
ChronoLocalDate as EpochDay: 18808
Reference: https://docs.oracle.com/javase/9/docs/api/java/time/chrono/ChronoLocalDate.html#toEpochDay–
