How to convert current date and time in 2016-02-14T15:50:39Z format?

Question

I want to convert system date and time in 2016-02-14T15:50:39Z format. How to achieve using java?

Please please please READ -> https://docs.oracle.com/javase/6/docs/api/java/text/SimpleDateFormat.html !! — Vinay Veluri, Feb 17 '16 at 09:57
Ya I heard but I am not able to convert so I asked. Can anyone help me out?? — Sourabh, Feb 17 '16 at 10:04
Similar to [this other Question](http://stackoverflow.com/q/3914404/642706), but that one truncates to whole minute whereas this Question truncates to whole second. — Basil Bourque, Feb 17 '16 at 21:32

Basil Bourque · Answer 1 · 2017-12-04T15:41:06.150

tl;dr

Instant.now()
       .toString()

2018-01-23T01:23:45.678901Z

Details

The other answers use old outmoded classes.

ISO 8601

Your desired format complies with the ISO 8601 standard.

The Z on the end stands for Zulu which means UTC.

java.time

In Java 8 and later, use the built-in java.time framework.

The java.time classes use ISO 8601 formats by default when parsing/generating textual representations of date-time values.

Instant

An Instant is a moment on the time line in UTC. Its now method gets the current moment. As of Java 8 Update 74 that now method gets the current moment with millisecond resolution but future versions may get up to the full nanosecond resolution which can fit in an Instant.

The Instant::toString method generates a String just as you desire, using groups of digits (0, 3, 6, or 9) as needed for the fractional second.

String output = Instant.now().toString();  // Example: 2016-02-14T15:50:39.123Z

Truncate fractional second

If do not care about the fraction of a second, as seen in your Question’s example, truncate with a call to with, passing the ChronoField.NANO_OF_SECOND enum.

String output = Instant.now().with( ChronoField.NANO_OF_SECOND , 0 ).toString();  // Example: 2016-02-14T15:50:39Z (no '.123' at end)

Even simpler, call truncatedTo method, passing a ChronoUnit.SECONDS enum.

String output = Instant.now().truncatedTo( ChronoUnit.SECONDS ).toString();

If you want to truncate to whole minute rather than whole second, see this other Question.

score 1 · Answer 2 · answered Feb 17 '16 at 10:00

Try this code:

import java.text.SimpleDateFormat;
import java.util.Date;

public class Main {

    public static void main(String[] args)
    {
        Date dt=new Date();
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");
        String formattedDate = formatter.format(dt);
        System.out.println(formattedDate);
    }
}

You can try several others date formats here.

score 0 · Answer 3 · answered Feb 17 '16 at 09:59

use simple date format below is example :

Date curDate = new Date();

    SimpleDateFormat format = new SimpleDateFormat("yyyy/MM/dd");

    String DateToStr = format.format(curDate);
    System.out.println(DateToStr);

    format = new SimpleDateFormat("dd-M-yyyy hh:mm:ss");
    DateToStr = format.format(curDate);
    System.out.println(DateToStr);

    format = new SimpleDateFormat("dd MMMM yyyy zzzz", Locale.ENGLISH);
    DateToStr = format.format(curDate);
    System.out.println(DateToStr);

    format = new SimpleDateFormat("E, dd MMM yyyy HH:mm:ss z");
    DateToStr = format.format(curDate);
    System.out.println(DateToStr);

    try {
        Date strToDate = format.parse(DateToStr);
        System.out.println(strToDate);
    } catch (ParseException e) {
        e.printStackTrace();
    }
}