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Need help parsing String into date [duplicate]

This question already has answers here:
Java - Unparseable date
(3 answers)
Getting error java.text.ParseException: Unparseable date: (at offset 0) even if the Simple date format and string value are identical
(4 answers)
Date format parse exception - "EEE MMM dd HH:mm:ss Z yyyy" [duplicate]
(3 answers)
Closed 3 years ago.
So I get this String ("Tue Nov 26 12:05:19 CET 2019") from a txt fiel and I want to parse it into a Date like this:
SimpleDateFormat format = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy");
Date date = null;
try {
date = format.parse(dateAsString);
} catch (ParseException e) {
e.printStackTrace();
}
And I still get this Exception:
java.text.ParseException: Unparseable date: "Tue Nov 26 12:05:19 CET 2019"
But the format/patter should be ok. So my question is how I parse the string into a date.

You are most likely not using English locale so Tue and Nov are not parsing. Specify the locale with the formatter and don't use obsolete date classes:
DateTimeFormatter fmt = DateTimeFormatter.ofPattern("EEE MMM dd HH:mm:ss zzz yyyy", Locale.US);
ZonedDateTime time = ZonedDateTime.parse("Tue Nov 26 12:05:19 CET 2019", fmt);
System.out.println(time); // 2019-11-26T12:05:19+01:00[Europe/Paris]

you can set language as English here
SimpleDateFormat format = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy", Locale.ENGLISH);
Date date = null;
try {
date = format.parse("Tue Nov 26 12:05:19 CET 2019");
} catch (ParseException e) {
e.printStackTrace();
}
System.out.println(date);

This worked for me:
SimpleDateFormat format =
new SimpleDateFormat("E MMM dd HH:mm:ss zzz yyyy", new Locale("en", "EN"));

How to parse date string EEE MMM dd to yyyy-MM-dd in java [duplicate]

This question already has answers here:
Change date format in a Java string
(22 answers)
how to parse output of new Date().toString()
(4 answers)
Closed 3 years ago.
I'm having the date in this pattern EEEEE MMMMM yyyy HH:mm:ss.SSSZ, I would like to convert this to yyyy-MM-dd format in java, I tried below approach but I'm getting this exception java.text.ParseException: Unparseable date:
SimpleDateFormat formatter = new SimpleDateFormat("dd-MMM-yyyy");
String dateInString = "Sun Oct 01 00:00:00 EDT 2017";
try {
Date date = formatter.parse(dateInString);
System.out.println(date);
System.out.println(formatter.format(date));
} catch (ParseException e) {
e.printStackTrace();
}
Can someone please help me to resolve this?
Thanks.

From java-8 you can use the ZonedDateTime with pattern of your input date which is EEE MMM dd HH:mm:ss zzz yyyy
String dateInString = "Sun Oct 01 00:00:00 EDT 2017";
ZonedDateTime time = ZonedDateTime.parse(dateInString,DateTimeFormatter.ofPattern("EEE MMM dd HH:mm:ss zzz yyyy"));
System.out.println(time.toLocalDate()); //2017-10-01
By default LocalDate is without a time-zone in the ISO-8601 calendar system, such as 2007-12-03.

You've defined your formatter as the concept 'date, month, year', and then you try to ask it to parse a string that isn't in this format at all. You need to make a formatter that can format Sun Oct 01 00:00:00 EDT 2017, and dd-MMM-yyyy obviously isn't it. The javadoc of SimpleDateFormat will tell you what combination of letters you need to use.
Once you've got that, it's easy: parse with this new formatter, then call .format with your old one (the dd-MMM-yyyy one).

You can't use the same formatter for both parsing and formatting. See this answer: https://stackoverflow.com/a/999191

You double-create the DateFormat one parse and once to format
DateFormat dfParse = new SimpleDateFormat("EEEEE MMMMM yyyy HH:mm:ss.SSSZ");
DateFormat dfFormat = new SimpleDateFormat("yyyy-MM-dd");
dfFormat.format(dfParse.parse("Sun Oct 01 00:00:00 EDT 2017"))

How to format a date in a particular format which has timezone in the output [duplicate]

This question already has answers here:
Parsing Java String into GMT Date
(5 answers)
Illegal pattern character 'T' when parsing a date string to java.util.Date
(4 answers)
Java - unparseable date, need format to match "GMT-0400"
(2 answers)
Closed 5 years ago.
I have a date in string format like this. It is coming from some other souce in the below format and I cannot change that:
2025-08-08T15%3A41%3A46
I have to convert above string date in this format now:
Fri Aug 08 15:41:46 GMT-07:00 2025
So below is what I have tried:
String decodedDate = URLDecoder.decode("2025-08-08T15%3A41%3A46", "UTF-8");
SimpleDateFormat dateParser = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss", Locale.US);
Date date = dateParser.parse(decodedDate);
System.out.println(date);
And this is what it prints out on the console. It prints out PDT instead of GMT-07:00. How can I get that?
Fri Aug 08 15:41:46 PDT 2025
Also I am working with Java 7 and I can use joda-time library as well. This conversion method can be called by multiple threads.
In the desired output it is printing out GMT-07:00 so how can I get the timezone also in my code?
Update:-
How about doing this way?
SimpleDateFormat dateParser = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss", Locale.US);
TimeZone.setDefault(TimeZone.getTimeZone("GMT-07:00"));
String decodedDate = URLDecoder.decode("2025-08-08T15%3A41%3A46", "UTF-8");
Date date = dateParser.parse(decodedDate);
System.out.println(date.toString());

SimpleDateFormat dateParser = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss", Locale.US);
String decodedDate = URLDecoder.decode("2025-08-08T15%3A41%3A46", "UTF-8");
Date date = dateParser.parse(decodedDate);
//Decode the given date and convert to Date object
SimpleDateFormat sdf = new SimpleDateFormat("EEE MMM dd hh:mm:ss z-07:00 yyyy", Locale.US);
sdf.setTimeZone(TimeZone.getTimeZone("GMT"));
System.out.println(sdf.format(date)); // set the timezone and print in the desired format
Output:
Fri Aug 08 07:41:46 GMT-07:00 2025
Update: As suggected by KevinO, a better way to do is
SimpleDateFormat sdf = new SimpleDateFormat("EEE MMM dd hh:mm:ss z yyyy", Locale.US);
sdf.setTimeZone(TimeZone.getTimeZone("GMT-0700"));

Formatting Date from Date Object with only MM/DD/YYYY

Currently using Parse to obtain a date on an object by using:
Date date = object.getCreatedAt();
The returned String when displaying it in a TextView is this:
Mon Mar 17 22:39:27 CET 2014
However I really only want the MM/DD/YYYY to display like so: 3/17/2014
I've tried this:
Date date = object.getCreatedAt();
SimpleDateFormat originalFormat = new SimpleDateFormat("MMM DDD yyyy");
try {
Date originaldate = originalFormat.parse(date.toString());
finalDate = originaldate.toString();
} catch (java.text.ParseException e1) {
e1.printStackTrace();
}
but keep getting a ParseException for "Unparseable date", any idea what's going on? If I were to simply change this line back to this:
SimpleDateFormat originalFormat = new SimpleDateFormat("EEE MMM DDD HH:mm:ss z yyyy");
Then it prints out the full date again just fine with no parse exception, including all the date stuff I don't want.

Don't use parse method, use format instead :
Date date = object.getCreatedAt();
SimpleDateFormat formater = new SimpleDateFormat("M/d/yyyy");
String datestring = formater.format(date); // value is : 3/17/2014

http://docs.oracle.com/javase/6/docs/api/java/util/Date.html#toString()
java.util.Date.toString() method always returns a String of format
dow mon dd hh:mm:ss zzz yyyy
For example, Thu Jan 10 02:00:00 EET 1992.
Your Date format "MMM DDD yyyy" expects a date String like Jan 10 1992 where 10 represents not 10th day of January but 10th day of year 1992.
Therefore to convert a date to String and convert it back to Date object using your format, you need to do
Date originaldate = originalFormat.parse(originalFormat.parse(date.toString()));
Or to convert Date.toString() to Date object,
SimpleDateFormat toStringFormat = new SimpleDateFormat("dow mon dd hh:mm:ss zzz yyyy");
Date originaldate = toStringFormat.parse(date.toString());
Lastly, if you want a Date string with format like 3/17/2014, the correct format is M/d/yyyy.
Refer to http://docs.oracle.com/javase/7/docs/api/java/text/SimpleDateFormat.html for help on how to write Date format.

Date format conversion error [duplicate]

This question already has answers here:
SimpleDateFormat ignoring month when parsing
(4 answers)
Closed 9 years ago.
I am facing the problem while converting the date:
Current format is:Thu Sep 05 12:07:46 IST 2013(dow mon dd hh:mm:ss zzz yyyy)
I need to convert in to:09/04/2013 11:38 PM PDT(mm/dd/yyyy hh:mm a zzz)
But i am not able to convert.

Try using SimpleDateFormatter. You have to tell it the input/output format, you can do that based on this description (you can also find a few common examples there).
The code will be something like this:
try {
String input = "Thu Sep 05 12:07:46 IST 2013";
DateFormat formatter = new SimpleDateFormat("I leave this to you :-)))");
System.out.println(formatter.parse(input));
} catch (ParseException e) {
e.printStackTrace();
}
Hope that helps.

You can do this
TimeZone tz = TimeZone.getTimeZone("PST8PDT"); // example
// required format. Remember M is for month, m for miniute
DateFormat df = new SimpleDateFormat("MM/dd/yyyy hh:mm a zzz");
df.setTimeZone(tz);
String text = df.format(new Date());// current time
System.out.println(text);
Also please check this TimeZones in Java

You try to convert dateformat and timeZone as well, so you need to convert the timezone in your code.
SimpleDateFormat sf = new SimpleDateFormat("dow mon dd hh:mm:ss zzz yyyy");
isoFormat.setTimeZone(TimeZone.getTimeZone("PDT"));
Date date = isoFormat.parse("mm/dd/yyyy hh:mm a zzz");
this may help you.

try {
DateFormat dffrom = new SimpleDateFormat("E MMM dd hh:mm:ss zzz yyyy");
DateFormat dfto = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss a zzz");
Date date = dffrom.parse("Thu Sep 05 12:07:46 IST 2013");
String s = dfto.format(date);
System.out.println(s);
} catch (ParseException e) {
}
OutPut
09/05/2013 00:07:46 AM IST
update
try {
DateFormat dffrom = new SimpleDateFormat("E MMM dd hh:mm:ss zzz yyyy");
DateFormat dfto = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss a zzz");
TimeZone zone = TimeZone.getTimeZone("America/Los_Angeles");
dfto.setTimeZone(zone);
Date date = dffrom.parse("Thu Sep 05 12:07:46 IST 2013");
String s = dfto.format(date);
System.out.println(s);
} catch (ParseException e) {
}
output
09/04/2013 11:37:46 AM PDT