Javascript Descending Timer with Minutes, Seconds and Milliseconds

Javascript Descending Timer with Minutes, Seconds and Milliseconds - javascript

I have searched all over internet a lot but could not find solution.
I want a timer with descending order with minutes, seconds and milliseconds. i.e. 05:59:999 -> 5 Minutes, 59 Seconds, 999 Milliseconds.
Below is my code which give me just minutes and seconds :
var countdownTimer = '';
var upgradeTime = 300; // total sec row from the table
var seconds = upgradeTime;
function timer()
{
var days = Math.floor(seconds/24/60/60);
var hoursLeft = Math.floor((seconds) - (days*86400));
var hours = Math.floor(hoursLeft/3600);
var minutesLeft = Math.floor((hoursLeft) - (hours*3600));
var minutes = Math.floor(minutesLeft/60);
var remainingSeconds = seconds % 60;
document.getElementById('timer1').innerHTML = pad(minutes) + " : " + pad(remainingSeconds);
document.getElementById("timer1").style.border = "1px solid";
document.getElementById("timer1").style.padding = "4px";
}
function pad(n)
{
return (n < 10 ? "0" + n : n);
}
$('#acstart').on('click', function(e) // Start the timer
{
clearInterval(countdownTimer);
countdownTimer = setInterval('timer()', 1000);
});
I found fiddle with seconds and milliseconds here is the link :
http://jsfiddle.net/2cufprgL/1/
On completion of the timer I need to call other action.
Thanks

Using the fiddle you included, you only need to update the displayCount function to get the result you want.
function displayCount(count) {
let res = Math.floor(count / 1000);
let milliseconds = count.toString().substr(-3);
let seconds = res % 60;
let minutes = (res - seconds) / 60;
document.getElementById("timer").innerHTML =
minutes + ' min ' + seconds + ' s ' + milliseconds + ' ms';
}
Note that your fiddle has the correct approach to countdown, everytime the timer ticks it measures the actual time left it doesn't assume that the timer was 'on time'.

I wouldn't call this clean. But I did follow through using your code. I did change it to recursive setTimeout() though.
What I did is call the interval faster than 1000ms, set a specific speed variable and then properly decrement seconds while checking for a flag when seconds becomes 0, this flag then calls stopTimer().
var countdownTimer = '';
var upgradeTime = 3; // total sec row from the table
var seconds = upgradeTime;
var milliseconds = seconds * 1000;
var speed = 50; //interval speed
function timer()
{
milliseconds = (seconds * 1000) - speed; //decrement based on speed
seconds = milliseconds / 1000; //get new value for seconds
var days = Math.floor(seconds/24/60/60);
var hoursLeft = Math.floor((seconds) - (days*86400));
var hours = Math.floor(hoursLeft/3600);
var minutesLeft = Math.floor((hoursLeft) - (hours*3600));
var minutes = Math.floor(minutesLeft/60);
var remainingSeconds = (seconds % 60).toFixed(3);
if(seconds <= 0){ stopTimer(); return; } //sets a flag here for final call
document.getElementById('timer1').innerHTML = pad(minutes) + " : " + pad(remainingSeconds);
document.getElementById("timer1").style.border = "1px solid";
document.getElementById("timer1").style.padding = "4px";
setTimeout('timer()', speed);
}
function stopTimer(){
clearTimeout(countdownTimer);
console.log("IT HAS BEEN DONE");
document.getElementById('timer1').innerHTML = "00 : 00.000"
}
function pad(n)
{
return (n < 10 ? "0" + n : n);
}
clearTimeout(countdownTimer)
countdownTimer = setTimeout('timer()', speed);
<div id="timer1"></div>

Something that sorta works logically right now. It's a tad unstable because of what I was trying to do. https://codesandbox.io/s/8xr1kx8r68
Momentjs with Countdown library - its a little outdated and unmaintained but looks like it does something like what you want.
https://github.com/icambron/moment-countdown
http://countdownjs.org/readme.html

Related

Add milliseconds to JavaScript

I created a simple game for which I need a countdown. Now everything is fine, but I need to add a millisecond to the timer. I used the code found on the internet, but it lacks just those milliseconds. My attempts have not been successful, so I am asking you for help.
var seconds;
var temp;
function countdown() {
time = document.getElementById('countdown').innerHTML;
timeArray = time.split(':')
seconds = timeToSeconds(timeArray);
if (seconds == '') {
temp = document.getElementById('countdown');
temp.innerHTML = '00:00:00';
return;
}
seconds--;
temp = document.getElementById('countdown');
temp.innerHTML = secondsToTime(seconds);
timeoutMyOswego = setTimeout(countdown, 1000);
}
function timeToSeconds(timeArray) {
var minutes = (timeArray[0] * 1);
var seconds = (minutes * 60) + (timeArray[1] * 1);
return seconds;
}
function secondsToTime(secs) {
var divisor_for_minutes = secs % (60 * 60);
var minutes = Math.floor(divisor_for_minutes / 60);
minutes = minutes < 10 ? '0' + minutes : minutes;
var divisor_for_seconds = divisor_for_minutes % 60;
var seconds = Math.ceil(divisor_for_seconds);
seconds = seconds < 10 ? '0' + seconds : seconds;
return minutes + ':' + seconds;
}
countdown();

javascript countdown echoing wrong time

i want this my javascript code to to be able to be reading 3 hours countdown and also redirect to a new page after the countdown is complete
<script type="text/javascript">
// properties
var count = 0;
var counter = null;
window.onload = function() {
initCounter();
};
function initCounter() {
// get count from localStorage, or set to initial value of 1000
count = getLocalStorage('count') || 1000;
counter = setInterval(timer, 1000); //1000 will run it every 1 second
}
function setLocalStorage(key, val) {
if (window.localStorage) {
window.localStorage.setItem(key, val);
}
return val;
}
function getLocalStorage(key) {
return window.localStorage ? window.localStorage.getItem(key) : '';
}
function timer() {
count = setLocalStorage('count', count - 1);
if (count == -1) {
clearInterval(counter);
return;
}
var seconds = count % 60;
var minutes = Math.floor(count / 60);
var hours = Math.floor(minutes / 60);
minutes %= 60;
hours %= 60;
document.getElementById("timer").innerHTML = hours + "hours " + minutes + "minutes and " + seconds + " seconds left to complete this transaction"; // watch for spelling
}
</script>
<div id="timer"></div>
please help me make it better by making it been able to countdown to three hour and also redirect to another page after the countdown is complete

You didn't properly set total time. You set it to 16 minutes instead of 3 hours. Here is the working code (try it on JSFiddle):
var time = 60 * 60 * 3;
var div = document.getElementById("timer");
var t = Date.now();
var loop = function(){
var dt = (Date.now() - t) * 1e-3;
if(dt > time){
doWhateverHere();
}else{
dt = time - dt;
div.innerHTML = `Hours: ${dt / 3600 | 0}, Minutes: ${dt / 60 % 60 | 0}, Seconds: ${dt % 60 | 0}`;
}
requestAnimationFrame(loop);
};
loop();
Also, do not use setInterval and setTimeout for precise timing. These functions are volatile. Use Date.now() instead.

How to multiply a random time from milliseconds to minutes and seconds? [duplicate]

How to parse a given amount of milliseconds (e.g. 125230.41294642858) into a time format like: minutes:seconds?

var ms = 125230.41294642858,
min = 0|(ms/1000/60),
sec = 0|(ms/1000) % 60;
alert(min + ':' + sec);

Try the following
var num = Number(theTextValue);
var seconds = Math.floor(num / 1000);
var minutes = Math.floor(seconds / 60);
var seconds = seconds - (minutes * 60);
var format = minutes + ':' + seconds

Number.prototype.toTime = function(){
var self = this/1000;
var min = (self) << 0;
var sec = (self*60) % 60;
if (sec == 0) sec = '00';
return min + ':' + sec
};
var ms = (new Number('250')).toTime();
console.log(ms);
=> '0:15'
var ms = (new Number('10500')).toTime();
console.log(ms);
=> '10:30'

Even though moment.js does not provide such functionality, if you come here and you are already using moment.js, try this:
function getFormattedMs(ms) {
var duration = moment.duration(ms);
return moment.utc(duration.asMilliseconds()).format("mm:ss");
}
This workaround in moment was introduced in this Issue.

My javascriptcode is working when i put alert.I need to Display time in Counter Format(Seconds decreasing way)

My javascriptcode is working fine when i put alert.I need to Display time in Counter Format(Second decreasing way). Please help me in resolving this issue
<script type="text/javascript">
window.onload = function () {
//alert("request>>>");
var count = 0;
var start_actual_time = document.getElementById("timerStartTime").value;
var end_actual_time = document.getElementById("timerEndTime").value;
start_actual_time = new Date(start_actual_time);
var start_actual_time1 = new Date(start_actual_time.getTime());
start_actual_time1 = new Date(start_actual_time1);
var end_actual_time1 = new Date(end_actual_time);
var hours =end_actual_time1.getHours()- start_actual_time1.getHours();
var minutes = end_actual_time1.getMinutes() - start_actual_time1.getMinutes();
var seconds = end_actual_time1.getSeconds()- start_actual_time1.getSeconds();
seconds = hours * 3600 + minutes * 60 + seconds;
//alert ("seconds >>." +seconds);
timer(seconds);
};
function timer(seconds) {
alert("calling timer");
var s1 = Number(seconds);
var hours = Math.floor(s1 / 3600);
var minutes = Math.floor(s1 % 3600 / 60);
var s = Math.floor(s1 % 3600 % 60);
//alert("sec1" + s);
display = document.querySelector('#time');
var formatted = ((hours < 10)?("0" + hours):hours) + ":" + ((minutes < 10)?("0" + minutes):minutes) + ":" + ((s < 10)?("0" + s):s)
display.textContent = formatted ;
seconds = seconds - 1;
timer(seconds);
}
</script>

The way your code is written creates a
too much recursion
exception for me.
Therefore I have avoided recursive invokes and used javascript setInterval:
var refreshIntervalId = setInterval(function(){ timer(); }, 1000);
When your seconds reach zero, timer is stopped:
if (seconds == -1){
clearInterval(refreshIntervalId);
Link to working fiddle: http://jsfiddle.net/3ggspruf/2/

Countup since a specific date in javascript/jQuery [duplicate]

I want to use a simple countdown timer starting at 30 seconds from when the function is run and ending at 0. No milliseconds. How can it be coded?

var count=30;
var counter=setInterval(timer, 1000); //1000 will run it every 1 second
function timer()
{
count=count-1;
if (count <= 0)
{
clearInterval(counter);
//counter ended, do something here
return;
}
//Do code for showing the number of seconds here
}
To make the code for the timer appear in a paragraph (or anywhere else on the page), just put the line:
<span id="timer"></span>
where you want the seconds to appear. Then insert the following line in your timer() function, so it looks like this:
function timer()
{
count=count-1;
if (count <= 0)
{
clearInterval(counter);
return;
}
document.getElementById("timer").innerHTML=count + " secs"; // watch for spelling
}

I wrote this script some time ago:
Usage:
var myCounter = new Countdown({
seconds:5, // number of seconds to count down
onUpdateStatus: function(sec){console.log(sec);}, // callback for each second
onCounterEnd: function(){ alert('counter ended!');} // final action
});
myCounter.start();
function Countdown(options) {
var timer,
instance = this,
seconds = options.seconds || 10,
updateStatus = options.onUpdateStatus || function () {},
counterEnd = options.onCounterEnd || function () {};
function decrementCounter() {
updateStatus(seconds);
if (seconds === 0) {
counterEnd();
instance.stop();
}
seconds--;
}
this.start = function () {
clearInterval(timer);
timer = 0;
seconds = options.seconds;
timer = setInterval(decrementCounter, 1000);
};
this.stop = function () {
clearInterval(timer);
};
}

So far the answers seem to rely on code being run instantly. If you set a timer for 1000ms, it will actually be around 1008 instead.
Here is how you should do it:
function timer(time,update,complete) {
var start = new Date().getTime();
var interval = setInterval(function() {
var now = time-(new Date().getTime()-start);
if( now <= 0) {
clearInterval(interval);
complete();
}
else update(Math.floor(now/1000));
},100); // the smaller this number, the more accurate the timer will be
}
To use, call:
timer(
5000, // milliseconds
function(timeleft) { // called every step to update the visible countdown
document.getElementById('timer').innerHTML = timeleft+" second(s)";
},
function() { // what to do after
alert("Timer complete!");
}
);

Here is another one if anyone needs one for minutes and seconds:
var mins = 10; //Set the number of minutes you need
var secs = mins * 60;
var currentSeconds = 0;
var currentMinutes = 0;
/*
* The following line has been commented out due to a suggestion left in the comments. The line below it has not been tested.
* setTimeout('Decrement()',1000);
*/
setTimeout(Decrement,1000);
function Decrement() {
currentMinutes = Math.floor(secs / 60);
currentSeconds = secs % 60;
if(currentSeconds <= 9) currentSeconds = "0" + currentSeconds;
secs--;
document.getElementById("timerText").innerHTML = currentMinutes + ":" + currentSeconds; //Set the element id you need the time put into.
if(secs !== -1) setTimeout('Decrement()',1000);
}

// Javascript Countdown
// Version 1.01 6/7/07 (1/20/2000)
// by TDavid at http://www.tdscripts.com/
var now = new Date();
var theevent = new Date("Sep 29 2007 00:00:01");
var seconds = (theevent - now) / 1000;
var minutes = seconds / 60;
var hours = minutes / 60;
var days = hours / 24;
ID = window.setTimeout("update();", 1000);
function update() {
now = new Date();
seconds = (theevent - now) / 1000;
seconds = Math.round(seconds);
minutes = seconds / 60;
minutes = Math.round(minutes);
hours = minutes / 60;
hours = Math.round(hours);
days = hours / 24;
days = Math.round(days);
document.form1.days.value = days;
document.form1.hours.value = hours;
document.form1.minutes.value = minutes;
document.form1.seconds.value = seconds;
ID = window.setTimeout("update();", 1000);
}
<p><font face="Arial" size="3">Countdown To January 31, 2000, at 12:00: </font>
</p>
<form name="form1">
<p>Days
<input type="text" name="days" value="0" size="3">Hours
<input type="text" name="hours" value="0" size="4">Minutes
<input type="text" name="minutes" value="0" size="7">Seconds
<input type="text" name="seconds" value="0" size="7">
</p>
</form>

Just modified #ClickUpvote's answer:
You can use IIFE (Immediately Invoked Function Expression) and recursion to make it a little bit more easier:
var i = 5; //set the countdown
(function timer(){
if (--i < 0) return;
setTimeout(function(){
console.log(i + ' secs'); //do stuff here
timer();
}, 1000);
})();
var i = 5;
(function timer(){
if (--i < 0) return;
setTimeout(function(){
document.getElementsByTagName('h1')[0].innerHTML = i + ' secs';
timer();
}, 1000);
})();
<h1>5 secs</h1>

Expanding upon the accepted answer, your machine going to sleep, etc. may delay the timer from working. You can get a true time, at the cost of a little processing. This will give a true time left.
<span id="timer"></span>
<script>
var now = new Date();
var timeup = now.setSeconds(now.getSeconds() + 30);
//var timeup = now.setHours(now.getHours() + 1);
var counter = setInterval(timer, 1000);
function timer() {
now = new Date();
count = Math.round((timeup - now)/1000);
if (now > timeup) {
window.location = "/logout"; //or somethin'
clearInterval(counter);
return;
}
var seconds = Math.floor((count%60));
var minutes = Math.floor((count/60) % 60);
document.getElementById("timer").innerHTML = minutes + ":" + seconds;
}
</script>

For the sake of performances, we can now safely use requestAnimationFrame for fast looping, instead of setInterval/setTimeout.
When using setInterval/setTimeout, if a loop task is taking more time than the interval, the browser will simply extend the interval loop, to continue the full rendering. This is creating issues. After minutes of setInterval/setTimeout overload, this can freeze the tab, the browser or the whole computer.
Internet devices have a wide range of performances, so it's quite impossible to hardcode a fixed interval time in milliseconds!
Using the Date object, to compare the start Date Epoch and the current. This is way faster than everything else, the browser will take care of everything, at a steady 60FPS (1000 / 60 = 16.66ms by frame) -a quarter of an eye blink- and if the task in the loop is requiring more than that, the browser will drop some repaints.
This allow a margin before our eyes are noticing (Human = 24FPS => 1000 / 24 = 41.66ms by frame = fluid animation!)
https://caniuse.com/#search=requestAnimationFrame
/* Seconds to (STRING)HH:MM:SS.MS ------------------------*/
/* This time format is compatible with FFMPEG ------------*/
function secToTimer(sec){
const o = new Date(0), p = new Date(sec * 1000)
return new Date(p.getTime()-o.getTime()).toString().split(" ")[4] + "." + p.getMilliseconds()
}
/* Countdown loop ----------------------------------------*/
let job, origin = new Date().getTime()
const timer = () => {
job = requestAnimationFrame(timer)
OUT.textContent = secToTimer((new Date().getTime() - origin) / 1000)
}
/* Start looping -----------------------------------------*/
requestAnimationFrame(timer)
/* Stop looping ------------------------------------------*/
// cancelAnimationFrame(job)
/* Reset the start date ----------------------------------*/
// origin = new Date().getTime()
span {font-size:4rem}
<span id="OUT"></span>
<br>
<button onclick="origin = new Date().getTime()">RESET</button>
<button onclick="requestAnimationFrame(timer)">RESTART</button>
<button onclick="cancelAnimationFrame(job)">STOP</button>

You can do as follows with pure JS. You just need to provide the function with the number of seconds and it will do the rest.
var insertZero = n => n < 10 ? "0"+n : ""+n,
displayTime = n => n ? time.textContent = insertZero(~~(n/3600)%3600) + ":" +
insertZero(~~(n/60)%60) + ":" +
insertZero(n%60)
: time.textContent = "IGNITION..!",
countDownFrom = n => (displayTime(n), setTimeout(_ => n ? sid = countDownFrom(--n)
: displayTime(n), 1000)),
sid;
countDownFrom(3610);
setTimeout(_ => clearTimeout(sid),20005);
<div id="time"></div>

Based on the solution presented by #Layton Everson I developed a counter including hours, minutes and seconds:
var initialSecs = 86400;
var currentSecs = initialSecs;
setTimeout(decrement,1000);
function decrement() {
var displayedSecs = currentSecs % 60;
var displayedMin = Math.floor(currentSecs / 60) % 60;
var displayedHrs = Math.floor(currentSecs / 60 /60);
if(displayedMin <= 9) displayedMin = "0" + displayedMin;
if(displayedSecs <= 9) displayedSecs = "0" + displayedSecs;
currentSecs--;
document.getElementById("timerText").innerHTML = displayedHrs + ":" + displayedMin + ":" + displayedSecs;
if(currentSecs !== -1) setTimeout(decrement,1000);
}

// Javascript Countdown
// Version 1.01 6/7/07 (1/20/2000)
// by TDavid at http://www.tdscripts.com/
var now = new Date();
var theevent = new Date("Nov 13 2017 22:05:01");
var seconds = (theevent - now) / 1000;
var minutes = seconds / 60;
var hours = minutes / 60;
var days = hours / 24;
ID = window.setTimeout("update();", 1000);
function update() {
now = new Date();
seconds = (theevent - now) / 1000;
seconds = Math.round(seconds);
minutes = seconds / 60;
minutes = Math.round(minutes);
hours = minutes / 60;
hours = Math.round(hours);
days = hours / 24;
days = Math.round(days);
document.form1.days.value = days;
document.form1.hours.value = hours;
document.form1.minutes.value = minutes;
document.form1.seconds.value = seconds;
ID = window.setTimeout("update();", 1000);
}
<p><font face="Arial" size="3">Countdown To January 31, 2000, at 12:00: </font>
</p>
<form name="form1">
<p>Days
<input type="text" name="days" value="0" size="3">Hours
<input type="text" name="hours" value="0" size="4">Minutes
<input type="text" name="minutes" value="0" size="7">Seconds
<input type="text" name="seconds" value="0" size="7">
</p>
</form>

My solution works with MySQL date time formats and provides a callback function. on complition.
Disclaimer: works only with minutes and seconds, as this is what I needed.
jQuery.fn.countDownTimer = function(futureDate, callback){
if(!futureDate){
throw 'Invalid date!';
}
var currentTs = +new Date();
var futureDateTs = +new Date(futureDate);
if(futureDateTs <= currentTs){
throw 'Invalid date!';
}
var diff = Math.round((futureDateTs - currentTs) / 1000);
var that = this;
(function countdownLoop(){
// Get hours/minutes from timestamp
var m = Math.floor(diff % 3600 / 60);
var s = Math.floor(diff % 3600 % 60);
var text = zeroPad(m, 2) + ':' + zeroPad(s, 2);
$(that).text(text);
if(diff <= 0){
typeof callback === 'function' ? callback.call(that) : void(0);
return;
}
diff--;
setTimeout(countdownLoop, 1000);
})();
function zeroPad(num, places) {
var zero = places - num.toString().length + 1;
return Array(+(zero > 0 && zero)).join("0") + num;
}
}
// $('.heading').countDownTimer('2018-04-02 16:00:59', function(){ // on complete})

var hr = 0;
var min = 0;
var sec = 0;
var count = 0;
var flag = false;
function start(){
flag = true;
stopwatch();
}
function stop(){
flag = false;
}
function reset(){
flag = false;
hr = 0;
min = 0;
sec = 0;
count = 0;
document.getElementById("hr").innerHTML = "00";
document.getElementById("min").innerHTML = "00";
document.getElementById("sec").innerHTML = "00";
document.getElementById("count").innerHTML = "00";
}
function stopwatch(){
if(flag == true){
count = count + 1;
setTimeout( 'stopwatch()', 10);
if(count ==100){
count =0;
sec = sec +1;
}
}
if(sec ==60){
min = min +1 ;
sec = 0;
}
if(min == 60){
hr = hr +1 ;
min = 0;
sec = 0;
}
var hrs = hr;
var mins = min;
var secs = sec;
if(hr<10){
hrs ="0" + hr;
}
if(min<10){
mins ="0" + min;
}
if(sec<10){
secs ="0" + sec;
}
document.getElementById("hr").innerHTML = hrs;
document.getElementById("min").innerHTML = mins;
document.getElementById("sec").innerHTML = secs;
document.getElementById("count").innerHTML = count;
}

Develop Reference

JavaScript is the programming language of the Web.

Javascript Descending Timer with Minutes, Seconds and Milliseconds - javascript

Related

Add milliseconds to JavaScript

javascript countdown echoing wrong time

How to multiply a random time from milliseconds to minutes and seconds? [duplicate]

My javascriptcode is working when i put alert.I need to Display time in Counter Format(Seconds decreasing way)

Countup since a specific date in javascript/jQuery [duplicate]

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