Programing

AM / PM을 사용하여 12 시간 형식으로 현재 시간 표시

lottogame 2020. 5. 31. 09:54
반응형

AM / PM을 사용하여 12 시간 형식으로 현재 시간 표시


현재 시간이 표시 13시 35분 오후 그러나 내가 즉, AM / PM 12 시간 형식, 1:35 PM 대신 13시 35분 PM으로 표시 할

현재 코드는 다음과 같습니다

private static final int FOR_HOURS = 3600000;
private static final int FOR_MIN = 60000;
public String getTime(final Model model) {
    SimpleDateFormat formatDate = new SimpleDateFormat("HH:mm a");
    formatDate.setTimeZone(userContext.getUser().getTimeZone());
    model.addAttribute("userCurrentTime", formatDate.format(new Date()));
    final String offsetHours = String.format("%+03d:%02d", userContext.getUser().getTimeZone().getRawOffset()
    / FOR_HOURS, Math.abs(userContext.getUser().getTimeZone().getRawOffset() % FOR_HOURS / FOR_MIN));
    model.addAttribute("offsetHours",
                offsetHours + " " + userContext.getUser().getTimeZone().getDisplayName(Locale.ROOT));
    return "systemclock";
}

가장 쉬운 방법은 날짜 패턴을 사용하여 얻을 - h:mm a여기서,

  • h-오전 / 오후 시간 (1-12)
  • m-시간 분
  • a-오전 / 오후 마커

코드 스 니펫 :

DateFormat dateFormat = new SimpleDateFormat("hh:mm a");

설명서에 대한 자세한 내용-SimpleDateFormat java 7


이것을 사용하십시오 SimpleDateFormat formatDate = new SimpleDateFormat("hh:mm a");

여기에 이미지 설명을 입력하십시오

SimpleDateFormat에 대한 Java 문서


"hh:mm a"대신에 사용하십시오 "HH:mm a". 이곳까지 hh12 시간 형식과 HH24 시간 형식.

라이브 데모


SimpleDateFormat dateFormat = new SimpleDateFormat("dd-MMM-yy hh.mm.ss.S aa");
String formattedDate = dateFormat.format(new Date()).toString();
System.out.println(formattedDate);

출력 : 11-Sep-13 12.25.15.375 PM


SimpleDateFormat formatDate = new SimpleDateFormat("hh:mm:ss a");
  • h는 AM / PM 시간 (1-12)에 사용됩니다.

  • H는 24 시간 (1-24) 동안 사용됩니다.

  • a는 AM / PM 마커입니다

  • m은 시간 단위입니다

Note: Two h's will print a leading zero: 01:13 PM. One h will print without the leading zero: 1:13 PM.

Looks like basically everyone beat me to it already, but I digress


// hh:mm will print hours in 12hrs clock and mins (e.g. 02:30)
System.out.println(DateTimeFormatter.ofPattern("hh:mm").format(LocalTime.now()));

// HH:mm will print hours in 24hrs clock and mins (e.g. 14:30)
System.out.println(DateTimeFormatter.ofPattern("HH:mm").format(LocalTime.now())); 

// hh:mm a will print hours in 12hrs clock, mins and AM/PM (e.g. 02:30 PM)
System.out.println(DateTimeFormatter.ofPattern("hh:mm a").format(LocalTime.now())); 

Using Java 8:

LocalTime localTime = LocalTime.now();
DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern("hh:mm a");
System.out.println(localTime.format(dateTimeFormatter));

The output is in AM/PM Format.

Sample output:  3:00 PM

Just replace below statement and it will work.

SimpleDateFormat formatDate = new SimpleDateFormat("hh:mm a");

    //To get Filename + date and time


    SimpleDateFormat f = new SimpleDateFormat("MMM");
    SimpleDateFormat f1 = new SimpleDateFormat("dd");
    SimpleDateFormat f2 = new SimpleDateFormat("a");

    int h;
         if(Calendar.getInstance().get(Calendar.HOUR)==0)
            h=12;
         else
            h=Calendar.getInstance().get(Calendar.HOUR)

    String filename="TestReport"+f1.format(new Date())+f.format(new Date())+h+f2.format(new Date())+".txt";


The Output Like:TestReport27Apr3PM.txt

If you want current time with AM, PM in Android use

String time = new SimpleDateFormat("hh : mm a", Locale.getDefault()).format(Calendar.getInstance().getTime());

If you want current time with am, pm

String time = new SimpleDateFormat("hh : mm a", Locale.getDefault()).format(Calendar.getInstance().getTime()).toLowerCase();

OR

From API level 26

LocalTime localTime = LocalTime.now();
DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern("hh:mm a");
String time = localTime.format(dateTimeFormatter);

SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm a");

This will display the date and time


tl;dr

Let the modern java.time classes of JSR 310 automatically generate localized text, rather than hard-coding 12-hour clock and AM/PM.

LocalTime                                     // Represent a time-of-day, without date, without time zone or offset-from-UTC.
.now(                                         // Capture the current time-of-day as seen in a particular time zone.
    ZoneId.of( "Africa/Casablanca" )          
)                                             // Returns a `LocalTime` object.
.format(                                      // Generate text representing the value in our `LocalTime` object.
    DateTimeFormatter                         // Class responsible for generating text representing the value of a java.time object.
    .ofLocalizedTime(                         // Automatically localize the text being generated.
        FormatStyle.SHORT                     // Specify how long or abbreviated the generated text should be.
    )                                         // Returns a `DateTimeFormatter` object.
    .withLocale( Locale.US )                  // Specifies a particular locale for the `DateTimeFormatter` rather than rely on the JVM’s current default locale. Returns another separate `DateTimeFormatter` object rather than altering the first, per immutable objects pattern.
)                                             // Returns a `String` object.

10:31 AM

Automatically localize

Rather than insisting on 12-hour clock with AM/PM, you may want to let java.time automatically localize for you. Call DateTimeFormatter.ofLocalizedTime.

To localize, specify:

  • FormatStyle to determine how long or abbreviated should the string be.
  • Locale to determine:
    • The human language for translation of name of day, name of month, and such.
    • The cultural norms deciding issues of abbreviation, capitalization, punctuation, separators, and such.

Here we get the current time-of-day as seen in a particular time zone. Then we generate text to represent that time. We localize to French language in Canada culture, then English language in US culture.

ZoneId z = ZoneId.of( "Asia/Tokyo" ) ;
LocalTime localTime = LocalTime.now( z ) ;

// Québec
Locale locale_fr_CA = Locale.CANADA_FRENCH ;  // Or `Locale.US`, and so on.
DateTimeFormatter formatterQuébec = DateTimeFormatter.ofLocalizedTime( FormatStyle.SHORT ).withLocale( locale_fr_CA ) ;
String outputQuébec = localTime.format( formatterQuébec ) ;

System.out.println( outputQuébec ) ;

// US
Locale locale_en_US = Locale.US ;  
DateTimeFormatter formatterUS = DateTimeFormatter.ofLocalizedTime( FormatStyle.SHORT ).withLocale( locale_en_US ) ;
String outputUS = localTime.format( formatterUS ) ;

System.out.println( outputUS ) ;

See this code run live at IdeOne.com.

10 h 31

10:31 AM


SimpleDateFormat sdf = new SimpleDateFormat("hh:mm:ss a");

To put your current mobile date and time format in

Feb 9, 2018 10:36:59 PM

Date date = new Date();
 String stringDate = DateFormat.getDateTimeInstance().format(date);

you can show it to your Activity, Fragment, CardView, ListView anywhere by using TextView

` TextView mDateTime;

  mDateTime=findViewById(R.id.Your_TextViewId_Of_XML);

  Date date = new Date();
  String mStringDate = DateFormat.getDateTimeInstance().format(date);
  mDateTime.setText("My Device Current Date and Time is:"+date);

  `

import java.text.SimpleDateFormat;
import java.text.DateFormat;
import java.util.Date;

public class Main {
   public static void main(String [] args){
       try {
            DateFormat parseFormat = new SimpleDateFormat("dd-MM-yyyy HH:mm a");
            String sDate = "22-01-2019 13:35 PM";
            Date date = parseFormat.parse(sDate);
            SimpleDateFormat displayFormat = new SimpleDateFormat("dd-MM-yyyy hh:mm a");
            sDate = displayFormat.format(date);
            System.out.println("The required format : " + sDate);
        } catch (Exception e) {}
   }
}

You can use SimpleDateFormat for this.

SimpleDateFormat formatDate = new SimpleDateFormat("hh:mm a");

Hope this helps you.

참고 URL : https://stackoverflow.com/questions/18734452/display-current-time-in-12-hour-format-with-am-pm

반응형