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Parse Date, CET vs CEST, invalid TimeZone, unparseable

I am using shannah´s Data Access Library to access my objects via his DAO interfaces.
I face a very strange behaviour with parsing the date values when the unmap method gets called once my stuff is in the database. It only fails on CEST (Central European Summer Time)
I tried to use the NumberUtil.dateValue Method to parse it but it still fails...
java.lang.RuntimeException: Failed to parse string date format Thu Mar 31 00:00:00 CEST 2016. Could not find appropriate format parser.
i defined DateFormat´s as these
dateFormats[0] = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy");
dateFormats[1] = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzzz yyyy");
dateFormats[2] = new SimpleDateFormat("EEE MMM dd HH:mm:ss ZZZZ yyyy");
dateFormats[3] = new SimpleDateFormat("EEE MMM dd HH:mm:ss yyyy");
also tried to trim the String but it didnt help.
Im out of ideas as SDF doesnt have the constructor as the normal JDK with the 2nd parameter beeing the Locale.

// Method that take date time string , input pattern and out put pattern,that return formatted date as string
public String parseDate(String dateTime,String inputPattern, String outputPattern) throws ParseException {
SimpleDateFormat inputFormat = new SimpleDateFormat(inputPattern, Locale.ENGLISH);
SimpleDateFormat outputFormat = new SimpleDateFormat(outputPattern);
Date date = inputFormat.parse(dateTime);
String str = outputFormat.format(date);
return str;
}
// call method
String date = parseDate("Thu Mar 31 00:00:00 CEST 2016" ,"EEE MMM dd HH:mm:ss zzz yyyy", "MM-dd-yyyy:HH:mm:ss");
// print date
System.out.println(date);
// Result
03-31-2016:03:00:00

I now did a workaround to this issue, i can still develop my api and stuff further but to be honest i dont like this fix, as i think it will make some problems with the TimeZones later.
Can someone with more experience tell me anything about this fix, if it may cause errors with TimesZones and Summer/Winter times?
SimpleDateFormat sdf = new SimpleDateFormat("EEE MMM dd HH:mm:ss yyyy");
String dateValue = plannedDate;
String year = dateValue.substring(dateValue.length() - 4);
dateValue = dateValue.substring(0, 20);
dateValue += year;
this.plannedDate = sdf.parse(dateValue);
Any advice or possible fixes are welcome (y)

Java simple date formatter for string to date

Can anyone point out what seems to be the problem here?
try {
Date date = new SimpleDateFormat("Mon, 02 Nov 2015 15:13:00 EET").parse("EEE, dd MMM yyyy hh:mm:ss z");
} catch (ParseException e) {
e.printStackTrace();
}
and the stacktrace:
java.text.ParseException: Unparseable date: "Mon, 02 Nov 2015 15:13:00 EET" (at offset 26)
I'm suspecting something with the locale that I'm using but I can't be sure. Seems that "z" for timezone not working.
Edit:
Sorry the exception was funny earlier, I changed it but forgot to update here.
try {
Date date = new SimpleDateFormat("EEE, dd MMM yyyy hh:mm:ss z", Locale.US).parse("Mon, 02 Nov 2015 15:13:00 EET");
} catch (ParseException e) {
e.printStackTrace();
}

After looking at javadoc for SimpleDateFormat, you are using "hh" for hour, which is assumed to be a 12-hour time. Use HH for 24-hour time. Your example as 15 for the hour.

I think you're missing 'z' here.
Try:
Date date = new SimpleDateFormat("Mon, 02 Nov 2015 15:13:00 EET").
parse("EEE, dd MMM yyyy hh:mm:ss zzz")
Since your timezone is with three characters.

Such an exception can come from parsing a date with the wrong Locale. For example this date formatter :
SimpleDateFormat df = new SimpleDateFormat("EEE, dd MMM yyyy hh:mm:ss z", Locale.US);
will successfully parse the example date :
Date date = df.parse("Mon, 02 Nov 2015 15:13:00 EET");
But the following will give the exception you are getting
SimpleDateFormat df = new SimpleDateFormat("EEE, dd MMM yyyy hh:mm:ss z", Locale.FRENCH);
I would expect the Locale in Android to be chosen according to the language set by the user.

Prevent invalid date from getting converted into date of next month in jdk6?

Consider the snippet:
String dateStr = "Mon Jan 32 00:00:00 IST 2015"; // 32 Jan 2015
DateFormat formatter = new SimpleDateFormat("E MMM dd HH:mm:ss Z yyyy");
DateFormat ddMMyyyy = new SimpleDateFormat("dd.MM.yyyy");
System.out.println(ddMMyyyy.format(formatter.parse(dateStr)));
gives me the output as
01.02.2015 // Ist February 2015
I wish to prevent this to make the user aware on the UI that is an invalid date?
Any suggestions?

The option setLenient() of your SimpleDateFormat is what you are looking for.
After you set isLenient to false, it will only accept correctly formatted dates anymore, and throw a ParseException in other cases.
String dateStr = "Mon Jan 32 00:00:00 IST 2015"; // 32 Jan 2015
DateFormat formatter = new SimpleDateFormat("E MMM dd HH:mm:ss Z yyyy");
formatter.setLenient(false);
DateFormat ddMMyyyy = new SimpleDateFormat("dd.MM.yyyy");
try {
System.out.println(ddMMyyyy.format(formatter.parse(dateStr)));
} catch (ParseException e) {
// Your date is invalid
}

You can use DateFormat.setLenient(boolean) to (from the Javadoc) with strict parsing, inputs must match this object's format.
DateFormat ddMMyyyy = new SimpleDateFormat("dd.MM.yyyy");
ddMMyyyy.setLenient(false);

Set the date formatter not to be lenient...
DateFormat formatter = new SimpleDateFormat("E MMM dd HH:mm:ss Z yyyy");
formatter.setLenient(false);

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

Parse Exception in SimpleDateFormat

I am using SimpleDateFormat and I am getting ParseException as shown below.
java.text.ParseException: Unparseable date: "Mon Jul 02 21:56:10 AST 2012"
Code I have have is
String dateStr = "Mon Jul 02 21:56:10 AST 2012";
DateFormat readFormat = new SimpleDateFormat("EEE MMM dd HH:mm:ss Z yyyy ");
DateFormat writeFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date date = null;
try {
date = readFormat.parse(dateStr);
} catch (ParseException e) {
System.out.println("Error in parsing date ********");
}
String formattedDate = "";
if (date != null) {
formattedDate = writeFormat.format(date);
}
System.out.println("Formatted date is " + formattedDate);
Any idea where I am going wrong?
Update 1
I also tried with
DateFormat readFormat = new SimpleDateFormat("EEE MMM dd HH:mm:ss z yyyy ");
^
but still same exception.

Your code works (with z, and not Z), as soon as I specify that the date format should use the symbols of the English locale:
SimpleDateFormat readFormat = new SimpleDateFormat("EEE MMM dd HH:mm:ss z yyyy");
readFormat.setDateFormatSymbols(DateFormatSymbols.getInstance(Locale.ENGLISH));
As per eran, you also have extra space after yyyy: yyyy "). Remove that extra space.

The format code Z is for timezone offset, like -0800, while the format code z is for the written format, such as PST or CST, according to what's described at SimpleDateFormat. Double-check that your parse pattern has the intended capitalization.