java.text.ParseException: Unparseable date:

Question

Could anybody please tell me why i am getting java.text.ParseException: Unparseable date in the following code:

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;


public class Testdate {
    public static void main(String args[])
    {
        String text = "2011-11-19T00:00:00.000-05:00";
        DateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");
        try {
            Date parsed = sdf.parse(text.trim());
            System.out.println(parsed);
        } catch (ParseException e) {
            e.printStackTrace();
        }
    }

}

Chris · Accepted Answer · 2011-11-16 14:40:34Z

8

Its because of the colon in your timezone. Remove it and it will work:

String text = "2011-11-19T00:00:00.000-0500";
DateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");

answered Nov 16, 2011 at 14:40

Chris

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4 Comments

Pawan Over a year ago

you used a different String , but the actual String is "2011-11-19T00:00:00.000-05:00"; , I want the colon also

Chris Over a year ago

was just the explanation why it fails, and one way how to work around it.

Chris Over a year ago

I would investigate why you get a date, which is not RFC conform.. you can workaround it by just removing the last colon, but this is obviously a bad work around.

starryknight64 Over a year ago

Here's how I removed the colon: String dateStr = "2013-06-25T16:09:41.276-05:00"; Matcher m = Pattern.compile("(\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}\\.\\d{3}-)(\\d{2}:\\d{2})").matcher(dateStr); if (m.matches()) { dateStr = m.group(1) + m.group(2).replace(":", ""); } Date date = new SimpleDateFormat("yyyy-M-d'T'HH:mm:ss.SSSZ").parse(dateStr); System.out.printf("Date = '%s'", date);

Community · Accepted Answer · 2017-05-23 12:16:19Z

5

Because the Z part of SimpleDateFormat's pattern support doesn't handle offsets with colons in.

I suggest you use Joda Time instead, using ISODateFormat.dateTime() to get an appropriate formatter.

(See this similar-but-not-quite-the-same-question from earlier today for more information.)

edited May 23, 2017 at 12:16

CommunityBot

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answered Nov 16, 2011 at 14:38

Jon Skeet

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Comments

Arvind Kumar Avinash · Accepted Answer · 2024-11-15 19:24:26Z

`java.time`

In March 2014, Java 8 introduced the modern, java.time date-time API which supplanted the error-prone legacy java.util date-time API. Any new code should use the java.time API^*.

Also, shown below is a notice on the Joda-Time Home Page:

Note that from Java SE 8 onwards, users are asked to migrate to java.time (JSR-310) - a core part of the JDK which replaces this project.

Solution using modern date-time API

Given below is the excerpt from OffsetDateTime#parse documentation:

Obtains an instance of OffsetDateTime from a text string such as 2007-12-03T10:15:30+01:00.

The string must represent a valid date-time and is parsed using DateTimeFormatter.ISO_OFFSET_DATE_TIME.

Since your text string, 2011-11-19T00:00:00.000-05:00 fully complies with the default format, you do not need to specify any DateTimeFormatter explicitly.

Demo:

import java.time.*;

public class Main {
    public static void main(String[] args) {
        OffsetDateTime odt = OffsetDateTime.parse("2011-11-19T00:00:00.000-05:00");
        System.out.println(odt);
    }
}

Output:

2011-11-19T00:00-05:00

Online Demo

Note: If for some reason, you need an instance of java.util.Date, let java.time API do the heavy lifting of parsing the date-time string and convert odt from the above code into a java.util.Date instance using Date date = Date.from(odt.toInstant()).

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

^{* If you are receiving an instance of java.util.Date, convert it tojava.time.Instant, using Date#toInstant and derive other date-time classes of java.time from it as per your requirement.}

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