Formatting hour using SimpleDateFormat - Java Date Time

Java examples for Date Time:SimpleDateFormat

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Introduction

Hour can be formatted in H, HH, h, hh, k, kk, K and KK formats.

Demo Code

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

public class Main {

  public static void main(String[] args) {

    // create Date object
    Date date = new Date();

    // formatting hour in h (1-12 in AM/PM) format like 1, 2..12.
    String strDateFormat = "h";
    SimpleDateFormat sdf = new SimpleDateFormat(strDateFormat);

    System.out.println("hour in h format : " + sdf.format(date));

    // formatting hour in hh (01-12 in AM/PM) format like 01, 02..12.
    strDateFormat = "hh";
    sdf = new SimpleDateFormat(strDateFormat);

    System.out.println("hour in hh format : " + sdf.format(date));

    // formatting hour in H (0-23) format like 0, 1...23.
    strDateFormat = "H";
    sdf = new SimpleDateFormat(strDateFormat);

    System.out.println("hour in H format : " + sdf.format(date));

    // formatting hour in HH (00-23) format like 00, 01..23.
    strDateFormat = "HH";
    sdf = new SimpleDateFormat(strDateFormat);

    System.out.println("hour in HH format : " + sdf.format(date));

    // formatting hour in k (1-24) format like 1, 2..24.
    strDateFormat = "k";
    sdf = new SimpleDateFormat(strDateFormat);

    System.out.println("hour in k format : " + sdf.format(date));

    // formatting hour in kk (01-24) format like 01, 02..24.
    strDateFormat = "kk";
    sdf = new SimpleDateFormat(strDateFormat);

    System.out.println("hour in kk format : " + sdf.format(date));

    // formatting hour in K (0-11 in AM/PM) format like 0, 1..11.
    strDateFormat = "K";
    sdf = new SimpleDateFormat(strDateFormat);

    System.out.println("hour in K format : " + sdf.format(date));

    // formatting hour in KK (00-11) format like 00, 01,..11.
    strDateFormat = "KK";
    sdf = new SimpleDateFormat(strDateFormat);

    System.out.println("hour in KK format : " + sdf.format(date));

  }// ww w. jav  a  2s.c om

}

Result


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