Java Convert String to Duration

Tags: String Java Duration Java 8

In this Java core tutorial we learn how to convert a String object to java.time.Duration object in Java programming language.

How to convert String to Duration in Java

In Java, we can use the Duration.parse(CharSequence text) static method to parse a textual representation of a duration String to a Duration object as the example Java code below.

ConvertStringToDurationExample1.java 

import java.time.Duration;

public class ConvertStringToDurationExample1 {
    public static void main(String... args) {
        // PT0.999888777S equals 999888777 nanoseconds
        Duration duration1 = Duration.parse("PT0.999888777S");

        // PT19.123S equals 19.123 seconds
        Duration duration2 = Duration.parse("PT19.123S");

        // PT35M equals 35 minutes
        Duration duration3 = Duration.parse("PT35M");

        // PT23H equals 23 hours
        Duration duration4 = Duration.parse("PT23H");

        // P5D equals 5 days
        Duration duration5 = Duration.parse("P5D");

        // P2DT3H4M equals 2 days, 3 hours and 4 minutes
        Duration duration6 = Duration.parse("P2DT3H4M");

        // PT-6H3M equals -6 hours and +3 minutes
        Duration duration7 = Duration.parse("PT-6H3M");

        // -PT6H3M equals -6 hours and -3 minutes
        Duration duration8 = Duration.parse("-PT6H3M");

        // -PT-6H+3M equals +6 hours and -3 minutes
        Duration duration9 = Duration.parse("-PT-6H+3M");

        System.out.println("duration1 (PT0.999888777S equals 999888777 nanoseconds): " + duration1);
        System.out.println("duration2 (PT19.123S equals 19.123 seconds): " + duration2);
        System.out.println("duration3 (PT35M equals 35 minutes): " + duration3);
        System.out.println("duration4 (PT23H equals 23 hours): " + duration4);
        System.out.println("duration5 (P5D equals 5 days): " + duration5);
        System.out.println("duration6 (P2DT3H4M equals 2 days, 3 hours and 4 minutes): " + duration6);
        System.out.println("duration7 (PT-6H3M equals -6 hours and +3 minutes): " + duration7);
        System.out.println("duration8 (-PT6H3M equals -6 hours and -3 minutes): " + duration8);
        System.out.println("duration9 (-PT-6H+3M equals +6 hours and -3 minutes): " + duration9);
    }
}
The output as below. 
duration1 (PT0.999888777S equals 999888777 nanoseconds): PT0.999888777S
duration2 (PT19.123S equals 19.123 seconds): PT19.123S
duration3 (PT35M equals 35 minutes): PT35M
duration4 (PT23H equals 23 hours): PT23H
duration5 (P5D equals 5 days): PT120H
duration6 (P2DT3H4M equals 2 days, 3 hours and 4 minutes): PT51H4M
duration7 (PT-6H3M equals -6 hours and +3 minutes): PT-5H-57M
duration8 (-PT6H3M equals -6 hours and -3 minutes): PT-6H-3M
duration9 (-PT-6H+3M equals +6 hours and -3 minutes): PT5H57M

Happy Coding 😊

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