Get 25 hours back time in epoch using java 8 date time

i want to get the 25 hours in miliseconds i.e. 90000000 (25 hours in ms)
is there any way i can calculate dynamically using Java 8 Date and Time api ?
i am trying like below:

LocalDate.now().minusHours(25).toEpochDay()

but seems compilation error::

The method minusHours(int) is undefined for the type LocalDate

>Solution :

The following gives you 25 hours converted into milliseconds:

Duration.ofHours(25).toMillis()

If you want this much milliseconds behind the Unix epoch, you can subtract this duration from Instant.EPOCH using Instant.EPOCH.minus.

Demo:

import java.time.Duration;
import java.time.Instant;

public class SecondLargest {
    public static void main(String[] args) {
        System.out.println(Duration.ofHours(25).toMillis());
        System.out.println(Instant.EPOCH.minus(Duration.ofHours(25)));
        System.out.println(Instant.EPOCH.minus(Duration.ofHours(25)).toEpochMilli());
    }
}

Output:

90000000
1969-12-30T23:00:00Z
-90000000

Learn more about the the modern date-time API from Trail: Date Time.