我面临 dateFormat.parse(string) 的问题？

Question

I have below code snippet

SimpleDateFormat dateFormat = new SimpleDateFormat(
      "yyyy-MM-dd hh:mm:ss.SSS");
 String processedContentDate="2012-04-10 12:53:28.033";   
 java.util.Date parsedDate = dateFormat.parse(processedContentDate);
java.sql.Timestamp timestamp = new java.sql.Timestamp(
 parsedDate.getTime());

I get parsed date as Tue Apr 10 00:53:28 IST 2012 and timestamp as 2012-04-10 00:53:28.033. i want to get the time exactly as 12:53:28.033(as in my original string) not 00:53:28.033. Not getting why 12:53:28 is getting converted to 00:53:28. what should I do to get 12:53:28?

EDIT: After getting the response, I tried this small programme where current time is 14:34:38.899 but at both lines ie at line 1 and line 2, I got below parsed date 2012-04-10 14:34:38.899 As per reply I should have got 02:34:38.899 at line 1 as date format is yyyy-MM-dd hh:mm:ss.SSS")

    java.util.Date date= new java.util.Date();
    String strDate=date.toString();
    java.util.Date parsedDate;
    java.util.Date parsedDate2;
     SimpleDateFormat dateFormat = new SimpleDateFormat(
     "yyyy-MM-dd hh:mm:ss.SSS");// line 1
     SimpleDateFormat dateFormat2 = new SimpleDateFormat(
     "yyyy-MM-dd HH:mm:ss.SSS");//line 2
     try {
         java.sql.Timestamp timestamp = new java.sql.Timestamp(date.getTime());
          strDate=timestamp.toString();


            parsedDate = dateFormat.parse(strDate);//line1
            parsedDate2 = dateFormat2.parse(strDate);//line2

Answer 1

Define your dateFormat like that

DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");

HH instead of hh . See SimpleDateFormat

Answer 2

Your date format must be yyyy-MM-dd HH:mm:ss.SSS .

hh is hours in am/pm, while HH is hours in a day (that's where you mistake is). See SimpleDateFormat .

Answer 3

As per definition of Date.toString() and Timestamp.toString , the .toString() output is always using a 24-hour clock. If you want to show the time using AM/PM, you should use the dateformatter to print the date. As you are using the same date/time as a source for both ( strDate will use 14:34), when you parse the date, the SimpleDateFormat using the 12-hour clock is "lenient" and allows parsing of 14 as an hour.

If you set

dateFormat.setLenient(false);

you'll probably find that the dateFormat.parse(strDate) will fail.

To print dates, I would never rely on toString , but always use a formatter.

System.out.println(dateFormat.format(parsedDate)); // should show ...02:36...
System.out.println(dateFormat2.format(parsedDate)); // should show ...14:36...
System.out.println(dateFormat.format(parsedDate2)); // should show ...02:36...
System.out.println(dateFormat2.format(parsedDate2)); // should show ...14:36...

Answer 4

Try below code:

SimpleDateFormat fmt = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); Date date = fmt.parse("yourdate"); SimpleDateFormat fmtOut = new SimpleDateFormat("dd-MM-yyyy hh:mm a");String myDate = fmtOut.format(date);

If yourdate is 2016-06-10 12:06:43, then output will be 10-06-2016 12:06 pm.