Hello I am using an android application and I am trying to figure out how to convert a 24 hour time to a 12hour time.
Example
24 hour format 12:18:00
to
12 hour format 12:18pm
Try using a SimpleDateFormat:
String s = "12:18:00";
DateFormat f1 = new SimpleDateFormat("HH:mm:ss"); //HH for hour of the day (0 - 23)
Date d = f1.parse(s);
DateFormat f2 = new SimpleDateFormat("h:mma");
f2.format(d).toLowerCase(); // "12:18am"
If you are using Java 8 or 9 you can use java.time library like this :
String time = "22:18:00";
String result = LocalTime.parse(time).format(DateTimeFormatter.ofPattern("h:mma"));
Output
10:18PM
You'll most likely need to take a look at Java SimpleDateFormat.
To display the data in the format you want you should use something like this:
SimpleDateFormat sdf=new SimpleDateFormat("h:mm a");
sdf.format(dateObject);
Use SimpleDateFormat but note that HH is different from hh.
Say we have a time of 18:20
The format below would return 18:20 PM
SimpleDateFormat sdf = new SimpleDateFormat("HH:mm aa");
While this format would return 6:20 PM
SimpleDateFormat sdf = new SimpleDateFormat("hh:mm aa");
Hope this helps...
final String timein24Format = "22:10";
try {
final SimpleDateFormat sdf = new SimpleDateFormat("H:mm");
final Date dateObj = sdf.parse(timein24Format );
String timein12Format=new SimpleDateFormat("K:mm a").format(dateObj));
} catch (final ParseException e) {
e.printStackTrace();
}
try this code
String s= time ;
DateFormat f1 = new SimpleDateFormat("kk:mm");
Date d = null;
try {
d = f1.parse(s);
DateFormat f2 = new SimpleDateFormat("h:mma");
time = f2.format(d).toUpperCase(); // "12:18am"
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Related
This question already has answers here:
How do I convert the date from one format to another date object in another format without using any deprecated classes?
(10 answers)
Closed 6 years ago.
I want to convert timestamp to date in android, I tried this code but not get expected result.
My Code Is.
String timeStampST = "2016-12-13 09:47:11";
SimpleDateFormat dateFormat = new SimpleDateFormat("MM/dd/yyyy");
Date convertedDate = new Date();
try {
convertedDate = dateFormat.parse(timeStampST);
} catch (ParseException e) {
e.printStackTrace();
}
System.out.println(convertedDate);
Out Put
Tue Dec 13 16:15:02 GMT+05:30 2016
Expected Out Put
Tue Dec 13 2016
I need day in my output
Kindly copy paste this answer. It will help you.
String timeStampST = "2016-12-13 09:47:11";
SimpleDateFormat fmt = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date date = null;
String resultDate = null;
try {
date = fmt.parse(timeStampST);
SimpleDateFormat fmtOut = new SimpleDateFormat("EEE MMM dd yyyy");
resultDate = fmtOut.format(date);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
OUTPUT
resultDate = 12/13/2016
Use this method with string and input and output format.
public static String parseDateToddMMyyyy(String time, String inputPattern, String outputPattern) {
SimpleDateFormat inputFormat = new SimpleDateFormat(inputPattern);
SimpleDateFormat outputFormat = new SimpleDateFormat(outputPattern);
Date date;
String str = null;
try {
date = inputFormat.parse(time);
str = outputFormat.format(date);
} catch (ParseException e) {
e.printStackTrace();
}
return str;
}
I'm trying to convert a date (string) extracted from a csv file, convert it to sql timestamp and upload using prepared statement. What I have is:
String test = "8/10/2014 16:59";
DateFormat fromFormat = new SimpleDateFormat("dd/MM/yyyy hh:mm");
fromFormat.setLenient(false);
DateFormat toFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss.SSSSSS");
toFormat.setLenient(false);
Date date2 = null;
try {
date2 = toFormat.parse(test);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
//java.sql.Timestamp ts2 = java.sql.Timestamp.valueOf(date2);
//java.sql.Timestamp sqlDate2 = new java.sql.Timestamp(timestamp);
//sql_statement.setTimestamp(1, ts2);
As you can see my code is messy as I'm trying to solve this problem. I'm always getting an error in eclipse:
java.text.ParseException: Unparseable date: "8/10/2014 16:59"
at java.text.DateFormat.parse(DateFormat.java:357)
at com.syntronic.client.thread.ORCThreadTejasInv.uploadOracleDBOptical(ORCThreadTejasInv.java:555)
at com.syntronic.client.thread.ORCThreadTejasInv.connectOracleDB(ORCThreadTejasInv.java:170)
at com.syntronic.client.thread.ORCThreadTejasInv.retrieveOracleTejas(ORCThreadTejasInv.java:125)
at com.syntronic.client.thread.ORCThreadTejasInv.run(ORCThreadTejasInv.java:84)
at java.lang.Thread.run(Thread.java:745)
I even try using:
SimpleDateFormat sdf = new SimpleDateFormat( "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'" );
String yourformattedDate = sdf.format(test);
and diff error shows up"
Exception in thread "Thread-6" java.lang.IllegalArgumentException: Cannot format given Object as a Date
at java.text.DateFormat.format(DateFormat.java:301)
at java.text.Format.format(Format.java:157)
at com.syntronic.client.thread.ORCThreadTejasInv.uploadOracleDBOptical(ORCThreadTejasInv.java:562)
at com.syntronic.client.thread.ORCThreadTejasInv.connectOracleDB(ORCThreadTejasInv.java:170)
at com.syntronic.client.thread.ORCThreadTejasInv.retrieveOracleTejas(ORCThreadTejasInv.java:125)
at com.syntronic.client.thread.ORCThreadTejasInv.run(ORCThreadTejasInv.java:84)
at java.lang.Thread.run(Thread.java:745)
Anyone can help on why the date is unparseable? and how to convert it to a proper sql timestamp? thank you
Your fromFormat format specifier is
dd/MM/yyyy hh:mm
but should be
dd/MM/yyyy HH:mm
And change the toFormat to yyyy-MM-dd HH:mm:ss.SSSSSS
Then your parse code should change from
date2 = toFormat.parse(test);
to
date2 = fromFormat.parse(test);
System.out.println(toFormat.format(date2));
And I get the output
2014-10-08 04:59:00.000000
Please use following code it will serve your need
String test = "8/10/2014 16:59";
Date date2 = null;
SimpleDateFormat fromFormat = new SimpleDateFormat("dd/MM/yyyy hh:mm");
try
{
date2 = fromFormat.parse(test);
Timestamp tt = new Timestamp(date2.getTime());
System.out.println(tt);
} catch (ParseException ex)
{
date2 = null;
}
When you parse a date-string that looks like this:
String test = "8/10/2014 16:59";
you're using 24-hours format (16:59) you should use HH instead of hh.
See the following code snippet:
DateFormat fromFormat = new SimpleDateFormat("dd/MM/yyyy HH:mm");
fromFormat.setLenient(false);
Date date2 = null;
try {
date2 = fromFormat.parse(test);
System.out.println("date2 = " + date2); // prints date2 = Wed Oct 08 16:59:00 PDT 2014
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
So you have a String, and you want to parse it as a Date... Let's see if this example helps you:
import java.util.Date;
import java.text.SimpleDateFormat;
import java.text.ParseException;
public class DateConverter
{
public static void main(String[] args) {
String test = "8/10/2014 16:59";
SimpleDateFormat sdf1 = new SimpleDateFormat("d/MM/yyyy HH:mm"),
sdf2 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
/*
'sdf1' will be used to parse your input string as a date
'sdf2' will be used to output a string with your desired date format
*/
Date d;
String formatted_date;
try {
// Parse the string to a date, using the defined format
d = sdf1.parse(test);
// Now, format the date with 'sdf2' and store it in a string
formatted_date = sdf2.format(d);
System.out.println(formatted_date); // The output is: 2014-10-08 16:59:00
} catch(ParseException e) {
System.err.println(e.getMessage());
e.printStackTrace(System.err);
}
}
}
Was able to fix it using the code below:
DateFormat fromFormat = new SimpleDateFormat("dd/MM/yyyy HH:mm");
Date date2 = null;
String def = perRow[cnt].replaceAll("8", "08");
try {
date2 = fromFormat.parse(def);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
long tsTime1 = date2.getTime();
java.sql.Timestamp sqlDate2 = new java.sql.Timestamp(tsTime1);
sql_statement.setTimestamp(2, sqlDate2);
Of course, I don't know if this is the correct or proer way to it as:
1. replace the sting with correct day 'dd'
2. parse to date format
3. convert to long
4. convert to sql date
Anyone knows a better way or idea, thread is open for comments. thank you.
You can convert it using java.sql.Timestamp. Here is a snippet:
String strDate = "15/07/1989 15:30";
SimpleDateFormat format = new SimpleDateFormat("dd/MM/yyyy hh:mm");
Date date = format.parse(strDate);
System.out.println(date);
java.sql.Timestamp timestamp = new java.sql.Timestamp(date.getTime());
System.out.println(timestamp);
And the output will be:
Sat Jul 15 15:30:00 IST 1989
1989-07-15 15:30:00.0
Simple!
First parse fromDate then format in toDate pattern.
toFormat.format(fromFormat.parse(test));
I am trying to convert a date string of format dd.MM.YYYY into date object as following:
String start_dt = "01.01.2011";
DateFormat formatter = new SimpleDateFormat("dd.MM.YYYY");
Date date = (Date)formatter.parse(start_dt);
System.out.print("Date is : "+date);
But I am getting this result Date is : Sun Dec 26 00:00:00 MST 2010
I tried it in different ides and even on compileonline.com , still same result.
So Am I doing anything wrong here, because its not suppose to behave like this.
Please help.
The pattern for year is incorrect. You need to say:
DateFormat formatter = new SimpleDateFormat("dd.MM.yyyy");
The correct representation is yyyy
String start_dt = "01.01.2011";
DateFormat formatter = new SimpleDateFormat("dd.MM.yyyy");
Date date = null;
try {
date = (Date)formatter.parse(start_dt);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.print("Date is : "+date);
public static void main(String[] args) {
try {
String start_dt = "01.01.2011";
DateFormat formatter = new SimpleDateFormat("dd.MM.yyyy");
Date date = (Date)formatter.parse(start_dt);
System.out.print("Date is : "+date);
} catch (ParseException ex) {
Logger.getLogger(NewClass.class.getName()).log(Level.SEVERE, null, ex);
}
}
you should learn about DateFormat from here link1 and link2, you will realize that your code should be like that (year should be written in small letters).
String start_dt = "01.01.2011";
DateFormat formatter = new SimpleDateFormat("dd.MM.yyyy");
Date date = (Date)formatter.parse(start_dt);
System.out.print("Date is : "+date);
I get this date as a string from SOAP message
"2009-12-02T12:58:38.415+01:00"
Most i could i could identify and vary on subject was
to play with this format yyyy-MM-dd ? hh:mm:ss.????
I tried different combinations using SSS T z Z instead of '?"
DateFormat df = new SimpleDateFormat("... various formats ...");
System.out.println(df.parse("2009-12-02T12:58:38.415+01:00"));
but no success.
Any idea ?
Thanks
you have to change the timezone part. try this:
String a = "2009-12-02T12:58:38.415+01:00";
a = a.replaceFirst(":(?=\\d+$)", "");
final DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");
System.out.println(df.parse(a));
I don't think this is possible using the standard Java date formatting.
Using joda-time this can be done using the following code:
DateTimeFormatterBuilder b = new DateTimeFormatterBuilder()
.appendYear(4, 4).appendLiteral('-').appendMonthOfYear(2).appendLiteral('-').appendDayOfMonth(2)
.appendLiteral('T')
.appendHourOfDay(2).appendLiteral(':').appendMinuteOfHour(2).appendLiteral(':').appendSecondOfMinute(2)
.appendLiteral('.').appendMillisOfSecond(3).appendTimeZoneOffset(null, true, 2, 2);
DateTimeFormatter dateTimeParser = b.toFormatter();
System.out.println(dateTimeParser.parseDateTime("2009-12-02T12:58:38.415+01:00"));
Try with the following.
String date = "2009-12-02T12:58:38.415+01:00";
int lastIndexOf = date.lastIndexOf(":");
if(lastIndexOf>=0){
date = date.substring(0,lastIndexOf)+date.substring(lastIndexOf+1);
}
System.out.println("~~~~~~date~~~~~"+date);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'hh:mm:ss.SSSSZ");
try {
sdf.parse(date);
System.out.println("....date..."+date);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
I have a date in(string) in dd-mon-yyyy format and I want to compare this date with system date.
eg.
I have 12-OCT-2010
and I want to compere this with system date in same format
You can use the SystemDateFormat class to parse your String, for example
final DateFormat fmt = new SimpleDateFormat("dd-MMM-yyyy");
final Date input = fmt.parse("12-OCT-2010");
if (input.before(new Date()) {
// do something
}
Note that SimpleDateFormat is not threadsafe, so needs to be wrapped in a ThreadLocal if you have more than one thread accessing your code.
You may also be interested in Joda, which provides a better date API
Use SimpleDateFormat http://download.oracle.com/javase/6/docs/api/java/text/SimpleDateFormat.html
SimpleDateFormat f = new SimpleDateFormat("dd-MMM-yyyy");
String d = "12-OCT-2010";
try {
Date formatted = f.parse(d);
Date sysDate = new Date();
System.out.println(formatted);
System.out.println(sysDate);
if(formatted.before(sysDate)){
System.out.println("Formatted Date is older");
}
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
I would recommend using Joda Time. You can parse that String into a LocalDate object very simply, and then construct another LocalDate from the system clock. You can then compare these dates.
Using simpledateformat -
String df = "dd-MMM-yyyy";
SimpleDateFormat sdf = new SimpleDateFormat(df);
Calendar cal = Calendar.getInstance();
/* system date */
String systemdate = sdf.format(cal.getTime());
/* the date you want to compare in string format */
String yourdate = "12-Oct-2010";
Date ydate = null;
try {
ydate = sdf.parse(yourdate);
} catch (ParseException e) {
e.printStackTrace();
}
yourdate = sdf.format(ydate);
System.out.println(systemdate.equals(yourdate) ? "true" : "false");