java format particular date with T character

Question

What is the correct form for parse this date?: 2015-05-29T00:00:00+02:00

DateFormat format = new SimpleDateFormat("yyyyy-mm-dd hh:mm:ss");
Date data = format.parse(dataValue);

Pshemo · Accepted Answer · 2015-06-04T22:34:58.637

3

Try with

SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssXXX");

Notice that

MM represents months, while mm represents minutes.
if you want to have 24h format use HH, hh is for 12h format
XXX represents time zone in format like -08:00
to add literal like T in format you need to surround it with single quotes ' like 'T'

edited Jun 04 '15 at 22:34

answered Jun 04 '15 at 22:27

Pshemo

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Thanks it works, can I ask you how can I do to change the format output in "yyyy-MM-dd" ? – michele Jun 04 '15 at 22:43
If you have data as string in format `yyyy-MM-dd'T'HH:mm:ssXXX` and you want to convert it to format `yyyy-MM-dd` them I would say that simplest way would be using substring to pick this `yyyy-MM-dd` part. But if you for instance would like to convert it to something like `dd/MM/yyyy` then you would need to create another date formatter and simply `format` `Date` returned by original formatter. So your code can be like `String newFormat = newFormatter.format(oldFormatter.parse(stringDate))`. – Pshemo Jun 04 '15 at 22:48

score 0 · Answer 2 · answered May 04 '21 at 10:04

java.time

The legacy date-time API (java.util date-time types and their formatting API, SimpleDateFormat) is outdated and error-prone. It is recommended to stop using it completely and switch to java.time, the modern date-time API^*.

Since the modern date-time API is based on ISO 8601 standards, you are not required to use a DateTimeFormatter object explicitly to parse a date-time string conforming to the ISO 8601 standards. Your date-time string contains timezone offset string (+02:00) and therefore, the most appropriate type to be used to parse it is OffsetDateTime.

Demo:

import java.time.OffsetDateTime;

public class Main {
    public static void main(String args[]) {
        OffsetDateTime odt = OffsetDateTime.parse("2015-05-29T00:00:00+02:00");
        System.out.println(odt);
    }
}

Output:

2015-05-29T00:00+02:00

For whatsoever reason, if you need an instance of java.util.Date from this object of OffsetDateTime, you can do so as follows:

Date date = Date.from(odt.toInstant());

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

^{* For any reason, if you have to stick to Java 6 or Java 7, you can use ThreeTen-Backport which backports most of the java.time functionality to Java 6 & 7. If you are working for an Android project and your Android API level is still not compliant with Java-8, check Java 8+ APIs available through desugaring and How to use ThreeTenABP in Android Project.}

java format particular date with T character

2 Answers2

java.time