I have milliseconds. I need it to be converted to date format of
example:
23/10/2011
How to achieve it?
Just Try this Sample code:-
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
public class Test {
/**
* Main Method
*/
public static void main(String[] args) {
System.out.println(getDate(82233213123L, "dd/MM/yyyy hh:mm:ss.SSS"));
}
/**
* Return date in specified format.
* @param milliSeconds Date in milliseconds
* @param dateFormat Date format
* @return String representing date in specified format
*/
public static String getDate(long milliSeconds, String dateFormat)
{
// Create a DateFormatter object for displaying date in specified format.
SimpleDateFormat formatter = new SimpleDateFormat(dateFormat);
// Create a calendar object that will convert the date and time value in milliseconds to date.
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(milliSeconds);
return formatter.format(calendar.getTime());
}
}
I hope this help...
Convert the millisecond value to Date
instance and pass it to the choosen formatter.
SimpleDateFormat formatter = new SimpleDateFormat("dd/MM/yyyy");
String dateString = formatter.format(new Date(dateInMillis)));
public static String convertDate(String dateInMilliseconds,String dateFormat) {
return DateFormat.format(dateFormat, Long.parseLong(dateInMilliseconds)).toString();
}
Call this function
convertDate("82233213123","dd/MM/yyyy hh:mm:ss");
DateFormat.getDateInstance().format(dateInMS);
Instant.ofEpochMilli( myMillisSinceEpoch ) // Convert count-of-milliseconds-since-epoch into a date-time in UTC (`Instant`).
.atZone( ZoneId.of( "Africa/Tunis" ) ) // Adjust into the wall-clock time used by the people of a particular region (a time zone). Produces a `ZonedDateTime` object.
.toLocalDate() // Extract the date-only value (a `LocalDate` object) from the `ZonedDateTime` object, without time-of-day and without time zone.
.format( // Generate a string to textually represent the date value.
DateTimeFormatter.ofPattern( "dd/MM/uuuu" ) // Specify a formatting pattern. Tip: Consider using `DateTimeFormatter.ofLocalized…` instead to soft-code the formatting pattern.
) // Returns a `String` object.
The modern approach uses the java.time classes that supplant the troublesome old legacy date-time classes used by all the other Answers.
Assuming you have a long
number of milliseconds since the epoch reference of first moment of 1970 in UTC, 1970-01-01T00:00:00Z…
Instant instant = Instant.ofEpochMilli( myMillisSinceEpoch ) ;
To get a date requires a time zone. For any given moment, the date varies around the globe by zone.
ZoneId z = ZoneId.of( "Pacific/Auckland" ) ;
ZonedDateTime zdt = instant.atZone( z ) ; // Same moment, different wall-clock time.
Extract a date-only value.
LocalDate ld = zdt.toLocalDate() ;
Generate a String representing that value using standard ISO 8601 format.
String output = ld.toString() ;
Generate a String in custom format.
DateTimeFormatter f = DateTimeFormatter.ofPattern( "dd/MM/uuuu" ) ;
String output = ld.format( f ) ;
Tip: Consider letting java.time automatically localize for you rather than hard-code a formatting pattern. Use the DateTimeFormatter.ofLocalized…
methods.
The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date
, Calendar
, & SimpleDateFormat
.
To learn more, see the Oracle Tutorial . And search Stack Overflow for many examples and explanations. Specification is JSR 310 .
The Joda-Time project, now in maintenance mode , advises migration to the java.time classes.
You may exchange java.time objects directly with your database. Use a JDBC driver compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.*
classes. Hibernate 5 & JPA 2.2 support java.time .
Where to obtain the java.time classes?
try this code might help, modify it suit your needs
SimpleDateFormat format = new SimpleDateFormat("EEE MMM dd HH:mm:ss z yyyy");
Date d = format.parse(fileDate);
i finally find normal code that works for me
Long longDate = Long.valueOf(date);
Calendar cal = Calendar.getInstance();
int offset = cal.getTimeZone().getOffset(cal.getTimeInMillis());
Date da = new Date();
da = new Date(longDate-(long)offset);
cal.setTime(da);
String time =cal.getTime().toLocaleString();
//this is full string
time = DateFormat.getTimeInstance(DateFormat.MEDIUM).format(da);
//this is only time
time = DateFormat.getDateInstance(DateFormat.MEDIUM).format(da);
//this is only date
简短有效:
DateFormat.getDateTimeInstance().format(new Date(myMillisValue))
public class LogicconvertmillistotimeActivity extends Activity {
/** Called when the activity is first created. */
EditText millisedit;
Button millisbutton;
TextView millistextview;
long millislong;
String millisstring;
int millisec=0,sec=0,min=0,hour=0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
millisedit=(EditText)findViewById(R.id.editText1);
millisbutton=(Button)findViewById(R.id.button1);
millistextview=(TextView)findViewById(R.id.textView1);
millisbutton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
millisbutton.setClickable(false);
millisec=0;
sec=0;
min=0;
hour=0;
millisstring=millisedit.getText().toString().trim();
millislong= Long.parseLong(millisstring);
Calendar cal = Calendar.getInstance();
SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss");
if(millislong>1000){
sec=(int) (millislong/1000);
millisec=(int)millislong%1000;
if(sec>=60){
min=sec/60;
sec=sec%60;
}
if(min>=60){
hour=min/60;
min=min%60;
}
}
else
{
millisec=(int)millislong;
}
cal.clear();
cal.set(Calendar.HOUR_OF_DAY,hour);
cal.set(Calendar.MINUTE,min);
cal.set(Calendar.SECOND, sec);
cal.set(Calendar.MILLISECOND,millisec);
String DateFormat = formatter.format(cal.getTime());
// DateFormat = "";
millistextview.setText(DateFormat);
}
});
}
}
public static Date getDateFromString(String date) {
Date dt = null;
if (date != null) {
for (String sdf : supportedDateFormats) {
try {
dt = new Date(new SimpleDateFormat(sdf).parse(date).getTime());
break;
} catch (ParseException pe) {
pe.printStackTrace();
}
}
}
return dt;
}
public static Calendar getCalenderFromDate(Date date){
Calendar cal =Calendar.getInstance();
cal.setTime(date);return cal;
}
public static Calendar getCalenderFromString(String s_date){
Date date = getDateFromString(s_date);
Calendar cal = getCalenderFromDate(date);
return cal;
}
public static long getMiliSecondsFromString(String s_date){
Date date = getDateFromString(s_date);
Calendar cal = getCalenderFromDate(date);
return cal.getTimeInMillis();
}
public static String toDateStr(long milliseconds, String format)
{
Date date = new Date(milliseconds);
SimpleDateFormat formatter = new SimpleDateFormat(format, Locale.US);
return formatter.format(date);
}
I've been looking for an efficient way to do this for quite some time and the best I've found is:
DateFormat.getDateInstance(DateFormat.SHORT).format(new Date(millis));
Advantages:
Disadvantages:
You can cache the java.text.DateFormat object, but it's not threadsafe. This is OK if you are using it on the UI thread.
Coverting epoch format to SimpleDateFormat in Android (Java / Kotlin)
input: 1613316655000
output: 2021-02-14T15:30:55.726Z
In Java
long milliseconds = 1613316655000L;
Date date = new Date(milliseconds);
String mobileDateTime = Utils.getFormatTimeWithTZ(date);
//method that returns SimpleDateFormat in String
public static String getFormatTimeWithTZ(Date currentTime) {
SimpleDateFormat timeZoneDate = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.getDefault());
return timeZoneString = timeZoneDate.format(currentTime);
}
In Kotlin
var milliseconds = 1613316655000L
var date = Date(milliseconds)
var mobileDateTime = Utils.getFormatTimeWithTZ(date)
//method that returns SimpleDateFormat in String
fun getFormatTimeWithTZ(currentTime:Date):String {
val timeZoneDate = SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.getDefault())
return timeZoneString = timeZoneDate.format(currentTime)
}
This is the easiest way using Kotlin
private const val DATE_FORMAT = "dd/MM/yy hh:mm"
fun millisToDate(millis: Long) : String {
return SimpleDateFormat(DATE_FORMAT, Locale.US).format(Date(millis))
}
Use SimpleDateFormat for Android N and above. Use the calendar for earlier versions for example:
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
fileName = new SimpleDateFormat("yyyy-MM-dd-hh:mm:ss").format(new Date());
Log.i("fileName before",fileName);
}else{
Calendar cal = Calendar.getInstance();
cal.add(Calendar.MONTH,1);
String zamanl =""+cal.get(Calendar.YEAR)+"-"+cal.get(Calendar.MONTH)+"-"+cal.get(Calendar.DAY_OF_MONTH)+"-"+cal.get(Calendar.HOUR_OF_DAY)+":"+cal.get(Calendar.MINUTE)+":"+cal.get(Calendar.SECOND);
fileName= zamanl;
Log.i("fileName after",fileName);
}
Output:
fileName before: 2019-04-12-07:14:47 // use SimpleDateFormat
fileName after: 2019-4-12-7:13:12 // use Calender
fun convertLongToTimeWithLocale(){
val dateAsMilliSecond: Long = 1602709200000
val date = Date(dateAsMilliSecond)
val language = "en"
val formattedDateAsDigitMonth = SimpleDateFormat("dd/MM/yyyy", Locale(language))
val formattedDateAsShortMonth = SimpleDateFormat("dd MMM yyyy", Locale(language))
val formattedDateAsLongMonth = SimpleDateFormat("dd MMMM yyyy", Locale(language))
Log.d("month as digit", formattedDateAsDigitMonth.format(date))
Log.d("month as short", formattedDateAsShortMonth.format(date))
Log.d("month as long", formattedDateAsLongMonth.format(date))
}
output:
month as digit: 15/10/2020
month as short: 15 Oct 2020
month as long : 15 October 2020
You can change the value defined as 'language' due to your require. Here is the all language codes: Java language codes
You can construct java.util.Date on milliseconds. And then converted it to string with java.text.DateFormat.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.