Str to date java

How to convert String to Date – Java

In this tutorial, we will show you how to convert a String to java.util.Date . Many Java beginners are stuck in the Date conversion, hope this summary guide will helps you in some ways.

 // String -> Date SimpleDateFormat.parse(String); // Date -> String SimpleDateFormat.format(date); 

Refer to table below for some of the common date and time patterns used in java.text.SimpleDateFormat , refer to this JavaDoc

Letter	Description	Examples
y	Year	2013
M	Month in year	July, 07, 7
d	Day in month	1-31
E	Day name in week	Friday, Sunday
a	Am/pm marker	AM, PM
H	Hour in day	0-23
h	Hour in am/pm	1-12
m	Minute in hour	0-60
s	Second in minute	0-60

1. String = 7-Jun-2013

If 3 ‘M’, then the month is interpreted as text (Mon-Dec), else number (01-12).

 package com.mkyong.date; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; public class TestDateExample1 < public static void main(String[] argv) < SimpleDateFormat formatter = new SimpleDateFormat("dd-MMM-yyyy"); String dateInString = "7-Jun-2013"; try < Date date = formatter.parse(dateInString); System.out.println(date); System.out.println(formatter.format(date)); >catch (ParseException e) < e.printStackTrace(); >> > 

 Fri Jun 07 00:00:00 MYT 2013 07-Jun-2013 

2. String = 07/06/2013

 package com.mkyong.date; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; public class TestDateExample2 < public static void main(String[] argv) < SimpleDateFormat formatter = new SimpleDateFormat("dd/MM/yyyy"); String dateInString = "07/06/2013"; try < Date date = formatter.parse(dateInString); System.out.println(date); System.out.println(formatter.format(date)); >catch (ParseException e) < e.printStackTrace(); >> > 

 Fri Jun 07 00:00:00 MYT 2013 07/06/2013 

3. String = Fri, June 7 2013

 package com.mkyong.date; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; public class TestDateExample3 < public static void main(String[] argv) < SimpleDateFormat formatter = new SimpleDateFormat("E, MMM dd yyyy"); String dateInString = "Fri, June 7 2013"; try < Date date = formatter.parse(dateInString); System.out.println(date); System.out.println(formatter.format(date)); >catch (ParseException e) < e.printStackTrace(); >> > 

 Fri Jun 07 00:00:00 MYT 2013 Fri, Jun 07 2013 

4. String = Friday, Jun 7, 2013 12:10:56 PM

 package com.mkyong.date; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; public class TestDateExample4 < public static void main(String[] argv) < SimpleDateFormat formatter = new SimpleDateFormat("EEEE, MMM dd, yyyy HH:mm:ss a"); String dateInString = "Friday, Jun 7, 2013 12:10:56 PM"; try < Date date = formatter.parse(dateInString); System.out.println(date); System.out.println(formatter.format(date)); >catch (ParseException e) < e.printStackTrace(); >> > 

 Fri Jun 07 12:10:56 MYT 2013 Friday, Jun 07, 2013 12:10:56 PM 

5. String = 2014-10-05T15:23:01Z

Z suffix means UTC, java.util.SimpleDateFormat doesn’t parse it correctly, you need to replace the suffix Z with ‘+0000’.

 package com.mkyong.date; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; public class TestDateExample5 < public static void main(String[] argv) < SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ"); String dateInString = "2014-10-05T15:23:01Z"; try < Date date = formatter.parse(dateInString.replaceAll("Z$", "+0000")); System.out.println(date); System.out.println("time zone : " + TimeZone.getDefault().getID()); System.out.println(formatter.format(date)); >catch (ParseException e) < e.printStackTrace(); >> > 

 Sun Oct 05 23:23:01 MYT 2014 time zone : Asia/Kuala_Lumpur 2014-10-05T23:23:01+0800 

In Java 8, you can convert it into a java.time.Instant object, and display it with a specified time zone.

 package com.mkyong.date; import java.time.*; public class TestDateExample6 < public static void main(String[] argv) < String dateInString = "2014-10-05T15:23:01Z"; Instant instant = Instant.parse(dateInString); System.out.println(instant); //get date time only LocalDateTime result = LocalDateTime.ofInstant(instant, ZoneId.of(ZoneOffset.UTC.getId())); System.out.println(result); //get date time + timezone ZonedDateTime zonedDateTime = instant.atZone(ZoneId.of("Africa/Tripoli")); System.out.println(zonedDateTime); //get date time + timezone ZonedDateTime zonedDateTime2 = instant.atZone(ZoneId.of("Europe/Athens")); System.out.println(zonedDateTime2); >> 

 2014-10-05T15:23:01Z 2014-10-05T15:23:01 2014-10-05T17:23:01+02:00[Africa/Tripoli] 2014-10-05T18:23:01+03:00[Europe/Athens] 

References

mkyong

Founder of Mkyong.com, love Java and open source stuff. Follow him on Twitter. If you like my tutorials, consider make a donation to these charities.

Comments

How to convert below string “2020-11-22T05:57:10+01:00” using Java8 ?

Hi I have a requirement to convert DateofBirth, StartDate and TerminationDate fields in a file with about 100 lines. The current date format is 00.00.0000 and the requirement is 00/00/0000.

Thanks. This came in handy for me!

Hi, in your program you have DateFormat defined as ‘dd-MMM-yyyy’ then how come 23-September-2015 is a valid date as well? I’ve tried setting up lenient to false but that still won’t work, any suggestions please?

Hi
How to handle the format “2020–03–01 3:15 pm”?

Yoo solor quiero insertar una hora en mi base de datos y no entiendo nada!! el dato de mi base de datos es date, pero solo quiero pner hora por ejemplo 2:30 solo eso

In Method 4 4. String = Friday, Jun 7, 2013 12:10:56 PM
my requirement is if time is less than 12 (Friday, Jun 7, 2013 11:10:56 PM ) i am getting Unparseable date:
But in 12 hours format that is how we will write date.

Hello Sir,
I would like to ask, how to convert six june 1990 to 06/06/1990. Thanks

Do any one know what will be the formatter for this: 2018-06-19 14:59:29.0T-07:00
Thank you!

Hello Sir,
In example 5th the string i have passed is String = 14-10-05T15:23:01Z so in this case the output which i am getting is
Sun Oct 05 23:23:01 MYT 0014
time zone : Asia/Kuala_Lumpur
0014-10-05T23:23:01+0800
instead of parse exception which is causing data corruption. Please help how to handle this case ?

hello in my DB i Have declared month like a Long type ..so in my function I wan to use month like a Long value not String ..example : July i need it 07
How to proceed for that conversion ?

Hi Mkyong, Thanks. This came in handy for me!

Can you please guide me here –

import java.util.*;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;

/*Java date format issue
Input- 2016-11-23 23:38:03.850454 having milisec and nano in format
output- 20161123233803850454 in format YYYYMMDDHHmmssSSSSSS
my output- 201612361235213000454 which is incorrect , need help
*/
public class TestingDate
public static void main(String[] args) throws ParseException
TestingDate obj = new TestingDate();
System.out.println(obj.check(“2016-11-23 23:38:03.850454”));
>
public String check(String string) throws ParseException
String dateStr = string;
DateFormat srcDf = new SimpleDateFormat(“YYYY-MM-DD HH:mm:ss.SSSSSS”);
Date date = srcDf.parse(dateStr);
DateFormat destDf = new SimpleDateFormat(“YYYYMMDDHHmmssSSSSSS”);
dateStr = destDf.format(date);
return dateStr ;
>
>

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Str to date java

Let’s see another code to convert different types of Strings to Date in java. Here, we have used different date formats using SimpleDateFormat class.

31/12/1998 Thu Dec 31 00:00:00 IST 1998 31-Dec-1998 Thu Dec 31 00:00:00 IST 1998 12 31, 1998 Thu Dec 31 00:00:00 IST 1998 Thu, Dec 31 1998 Thu Dec 31 00:00:00 IST 1998 Thu, Dec 31 1998 23:37:50 Thu Dec 31 23:37:50 IST 1998 31-Dec-1998 23:37:50 Thu Dec 31 23:37:50 IST 1998

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