This post contains a total of 13+ Hand-picked Java Clock Examples, all the clocks are made purely using Java Programming Language.
You can use the source codes of these Java Clocks for educational use ( With Credits to Original Owner ), if you want to modify the code and use it for some other use then you can contact the original owner for it.
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1. By _Sau_rab_h
Java clock by Saurabh. The clock displays the current time in the format of HH/MM/SS. ( Source )
import java.time.LocalTime;
public class Example {
public static void main(String[] args) {
LocalTime currentTime = LocalTime.now(); System.out.println(currentTime);
System.out.println("Format is in Hour Minutes and seconds");
System.out.println("_____________________________________________");
System.out.println("_____________________________________________");
System.out.println("If you like then please give up a upvote ");
}
}2. By lTheCrow
Made by lTheCrow. The clock displays the current time and the time updates automatically. ( Source )
import java.time.OffsetTime;
import java.util.concurrent.*;
public class ClockThreads
{
public static void main(String[] args) {
Hour time = new Hour();
System.out.println("Executing clock...");
ExecutorService executeSubprocess = Executors.newCachedThreadPool();
executeSubprocess.execute(time);
executeSubprocess.shutdown();
}
}
class Hour implements Runnable{
OffsetTime date = OffsetTime.now();
@Override
public void run(){
//while(true){
date = OffsetTime.now();
System.out.println("Time: " + date.getHour() + "hs " + date.getMinute() + "min " + date.getSecond() + "sec");
System.out.println("Use an IDE to use the while cycle");
try {
Thread.sleep(1000); // We wait 1 second
// I don't want make to explode your computer xdxd
}catch(InterruptedException e){
System.err.println("The process was stopped.");
}
//}
}
}3. By cHiRaG GhOsH
Made by cHiRaG GhOsH. The clock displays the current Greenwich mean time, it is also styled a little bit using asterisks. ( Source )
import java.util.Calendar;
import java.text.SimpleDateFormat;
public class Program
{
public static void main(String[] args) {
Calendar cal = Calendar.getInstance();
SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
String s = sdf.format(cal.getTime());
int x=0;
for(int i=1;i<=7;i++)
{
for(int j=1;j<=16;j++)
{
if(i<=2||i>=6||j<=3||j>=14)
System.out.print("*");
else if(i==4&&j>=5&&j<=12)
System.out.print(s.charAt(x++));
else
System.out.print(" ");
}
System.out.println();
}
}
}4. By Nicholas
Made by Nicholas it shows the current day, date and the current time. ( Source )
import java.util.*;
public class Program
{
public static void main(String[] args) {
Date goodmorning = new Date();
System.out.format("Today is %tA, the %td of %tB. It's %tr", goodmorning , goodmorning , goodmorning , goodmorning );
}
}5. By Null
Java clock by Null. The clocks shows the date and the time. Change UTF to 8. ( Source )
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
public final class Clock {
private static final long min;
private static final long current;
private static final long max;
static {
min = Long.MIN_VALUE;
max = Long.MAX_VALUE;
current = System.currentTimeMillis();
}
public static void main(String[] args) throws Exception {
final OutputStream a = System.out;
a.write(new byte[] {0x43, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x74, 0x20, 0x54, 0x69, 0x6d, 0x65, 0x3a, 0x20});
a.write(new SimpleDateFormat("dd/MM/yyyy HH:mm:ss", Locale.getDefault()).format(new Date(current)).getBytes("UTF-8"));
a.flush();
a.close();
}
}6. By Rodrigi
Made by Rodrigo. It shows you the time and the date. ( Source )
import java.lang.Thread;
import java.util.Calendar;
public class Program
{
public static void main(String[] args) {
Thread t = new Thread();
while(true){
try{
Calendar c = Calendar.getInstance();
System.out.println(c.getTime());
t.sleep(1000);
}catch(Exception e){
}
}
}
}7. By Yaser Haidar
Made by Yaser Haidar. It displays the current time of Beirut. ( Source )
public class main{
public static void main(String[] args) {
long totalMilliseconds = System.currentTimeMillis();
long totalSeconds = totalMilliseconds / 1000;
long currentSecond = totalSeconds % 60;
long totalMinutes = totalSeconds / 60;
long currentMinute = totalMinutes % 60;
long totalHours = totalMinutes / 60;
long currentHour = totalHours % 24;
System.out.println("Current time is " + (currentHour + 3) + ":" + currentMinute + ":" + currentSecond + " Beirut");
}
}8. By Pratham Shah
Made by Pratham Shah. It displays the current day, current year, current date and the current time. ( Source )
import java.util.*;
public class Program
{
public static void main(String[] args) {
Date sc =new Date ();
String s=sc.toString();
System.out.println(s.substring (0));
}
}9. By GreyWolf
JMade by GreyWolf it displays the time using clock hand. The clock hand is a asterisk. ( Source )
import java.io.*;
import java.util.*;
import java.text.*;
public class Program
{
public static void main(String[] args) {
Date d = new Date();
String z = d.toString().charAt(11) + "" + d.toString().charAt(12);
int time = Integer.parseInt(z);
char[] t = new char[12];
for(int i=0;i<12;i++){
t[i]='.';
}
if(time<=11){
t[time]='*';
}else if(time<=23&&time>=12){
t[time-12]='*';
}else{
t[time]='.';
}
System.out.format("-----------------\n|.......0.......|\n|...11.."+t[0]+"...1...|\n|.10."+t[11]+"....."+t[1]+"..2.|\n|.."+t[10]+"..|---|.."+t[2]+"..|\n|9"+t[9]+"...|UTC|..."+t[3]+"3|\n|.."+t[8]+"..|---|.."+t[4]+"..|\n|.8.."+t[7]+"....."+t[5]+"..4.|\n|...7..."+t[6]+"...5...|\n|.......6.......|\n-----------------");
}
}
/*
("
-----------------
|.......0.......|
|...11..*...1...|
|.10.*.....*..2.|
|..*..|---|..*..|
|9*...|---|...*3|
|..*..|---|..*..|
|.8..*.....*..4.|
|...7...*...5...|
|.......6.......|
-----------------
")*/10. By DallenPL
A basic Java clock by DallenPL. ( Source )
import java.text.SimpleDateFormat;
import java.util.Calendar;
public class currentTime {
public static void main(String[] args) {
Calendar cal = Calendar.getInstance();
SimpleDateFormat sdf = new SimpleDateFormat("HH:mm");
System.out.println( sdf.format(cal.getTime()) );
}
}11. By Alireza Javadzadeh
Made by Alireza Javadzadeh. It displays the current time and it updates the time automatically. ( Source )
import java.util.Date;
import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
import java.util.logging.Logger;
public class Program
{
public static void main(String[] args) {
try{
Date date;
while(true){
date = new Date();
String s = String.valueOf(date.getSeconds());
if(Integer.parseInt(s)<10)s="0"+s;
String m = String.valueOf(date.getMinutes());
if(Integer.parseInt(m)<10)m="0"+m;
int h = date.getHours();
String status;
if(h<12)status="A.M";
else{status="P.M";h-=12;}
System.err.println(h+":"+m+":"+s+" "+status);
TimeUnit.SECONDS.sleep(1);
}
}
catch(InterruptedException ex){
Logger.getLogger(Program.class.getName())
.log(Level.SEVERE,null,ex);
}
}
}12. By Shaik Nabeen
Made by Shaik Nabeen. The clock displays the date, time and day. ( Source )
Mon Jul 11 08:33:06 GMT 2022 11/07/2022 08/33/06 Monday 8:33 AM
import java.util.Date;
import java.text.SimpleDateFormat;
public class Program
{
public static void main(String[] args) {
Date currentdate = new Date();
System.out.println(currentdate);
SimpleDateFormat dateformat = new SimpleDateFormat("dd/MM/yyyy");
System.out.println(dateformat.format(currentdate));
SimpleDateFormat timeformat = new SimpleDateFormat("hh/mm/ss");
System.out.println(timeformat.format(currentdate));
SimpleDateFormat weekformat = new SimpleDateFormat("EEEE");
System.out.println(weekformat.format(currentdate));
SimpleDateFormat ttformat = new SimpleDateFormat("h:mm a");
System.out.println(ttformat.format(currentdate));
}
}13. By Komodo64
Made by Komodo64. ( Source )
Time: 08:34:01
Time: 08:34:02
Time: 08:34:03
Time: 08:34:04
Time: 08:34:05import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Calendar;
import java.util.Timer;
import java.util.TimerTask;
public class SimpleClock
{
private int hour = 0;
private int minute = 0;
private int second = 0;
// Tick the time 5 times faster than a second
// so we don't get a "time limit exceeded" message :-)
private final int delayTime = 1000 / 5;
// We cannot keep the clock running on SoloLearn
// so we end it after 10 seconds.
private int stopCounter = 10;
private boolean signalToStop = false;
public SimpleClock()
{
Timer timer = new Timer();
TimerTask task;
setCurrentTime();
task = new TimerTask() {
@Override
public void run() {
traverseTime();
}
};
timer.schedule(task, 0, delayTime);
}
public void setTime( int hour, int minute, int seconds )
{
// Make sure time format is valid
if (hour >= 0 && hour < 24 &&
minute >= 0 && minute < 60 &&
second >= 0 && second < 60)
{
this.hour = hour;
this.minute = minute;
this.second = second;
}
else
{
System.err.printf("Invalid time format!");
}
}
public void setCurrentTime()
{
Calendar currTime = Calendar.getInstance();
setTime(currTime.get(Calendar.HOUR_OF_DAY),
currTime.get(Calendar.MINUTE),
currTime.get(Calendar.SECOND));
}
public void tick()
{
// Increment second
second++;
if (second == 60) { second = 0; minute++; }
if (minute == 60) { minute = 0; hour++; }
if (hour == 24) { hour = 0; }
stopCounter--;
if (stopCounter == 0)
signalToStop = true;
}
public void traverseTime()
{
tick(); // Tick the clock
showClockTime(); // Display our time
if (signalToStop) // Stop the clock
System.exit(0); // Exit the program
}
//
// Display formatted time.
//
public void showClockTime()
{
System.out.printf("Time: %02d:%02d:%02d%n",
hour, minute, second);
}
//
// Main Entry Point
//
public static void main(String[] argv)
{
new SimpleClock();
}
}14. By vatsal k
Made by vatsal k. Displays the current date and time. ( Source )
Current date is => 2022-07-11 Current Time is => 8 Hours 35 Minutes 34 Seconds 18153624 Nano Seconds
import java.time.*;
public class Time {
public static void main(String[] args) {
LocalDate date = LocalDate.now();
LocalTime time = LocalTime.now();
System.out.println("Current date is => " + date);
System.out.println("Current Time is => " + time.getHour() + " Hours " + time.getMinute() + " Minutes " + time.getSecond() + " Seconds " + time.getNano() + " Nano Seconds ");
}
}