The ofDays(long) method of Duration Class in java.time package is used to get a duration in a 24 hour format. In this method, the seconds are calculated as total seconds in 24 hour day format, i.e. 86400 seconds per day. Syntax:
public static Duration ofDays(long days)
Parameters: This method accepts a parameter days which is the number of days. It can be positive or negative. Return Value: This method returns a Duration representing the time in 24 hour format. Exception: This method throws ArithmeticException if the input days exceeds the capacity of Duration. Below examples illustrate the Duration.ofDays() method: Example 1:Â
Java
// Java code to illustrate duration ofDays() methodÂ
import java.time.Duration;Â
public class GFG {Â Â Â Â public static void main(String[] args)Â Â Â Â {Â
        // input number of Days        long noOfDays = 5;Â
        // Duration using ofDays() method        Duration duration = Duration.ofDays(noOfDays);Â
        System.out.println(duration.getSeconds());    }} |
Output:
432000
Example 2:Â
Java
// Java code to illustrate duration ofDays() methodÂ
import java.time.Duration;Â
public class GFG {Â Â Â Â public static void main(String[] args)Â Â Â Â {Â
        // input number of Days        long noOfDays = -214545;Â
        // Duration using ofDays() method        Duration duration = Duration.ofDays(noOfDays);Â
        System.out.println(duration.getSeconds());    }} |
Output:
-18536688000
Reference: https://docs.oracle.com/javase/9/docs/api/java/time/Duration.html#ofDays-long-
