How to Parse ISO-8601 Date Time Strings with Offset Colon in Java?

Parsing ISO-8601 Date Time with Offset: Colon in Java

Parsing date time strings in Java can be challenging, especially when dealing with unfamiliar formats. This article addresses the issue of parsing an ISO-8601 date time string with an offset containing a colon, such as "2013-04-03T17:04:39.9430000 03:00."

Solution

ISO-8601 is a widely used standard for representing date and time information. To parse ISO-8601 date time strings in Java, you can use the SimpleDateFormat class. Here's a code snippet demonstrating how to parse the provided string and reformat it to the desired "dd.MM.yyyy HH:mm" format:

<code class="java">import java.text.SimpleDateFormat;
import java.util.Date;

public class ISO8601DateTimeParser {

    public static void main(String[] args) throws Exception {
        // Parse the ISO-8601 date time string
        SimpleDateFormat inFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ");
        Date dtIn = inFormat.parse("2013-04-03T17:04:39.9430000+03:00");

        // Reformat the date time string
        SimpleDateFormat outFormat = new SimpleDateFormat("dd.MM.yyyy HH:mm");
        String dtOut = outFormat.format(dtIn);

        // Print the reformatted date time string
        System.out.println(dtOut); // Output: 03.04.2013 17:04
    }
}</code>

This code will parse the given ISO-8601 date time string and reformat it to the specified "dd.MM.yyyy HH:mm" format.

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