I have used a countdown to get the difference between two times. When I use the special time the timer stops despite time gets the difference when refreshing the browser I find it already counts but it doesn't show counting seconds.
<p id="demo"></p>
<script>
// given the city's UTC offset
function calcTime(city, offset) {
// create Date object for current location
d = new Date();
// convert to msec
// add local time zone offset
// get UTC time in msec
utc = d.getTime() + (d.getTimezoneOffset() * 60000);
// create new Date object for different city
// using supplied offset
nd = new Date(utc + (3600000*offset));
// return time as a string
return nd;
}
var xx = calcTime('country1', '+3');
var x1 = calcTime('country2', '-1');
// Set the date we're counting down to
var countDownDate = new Date(xx).getTime();
var now = new Date(x1).getTime();
// Update the count down every 1 second
var x = setInterval(function() {
// Get todays date and time //1527885631789
//var now2 = new Date().getTime(); //1527871237519
// Find the distance between now an the count down date
var distance = countDownDate - now;
// Time calculations for days, hours, minutes and seconds
var days = Math.floor(distance / (1000 * 60 * 60 * 24));
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Output the result in an element with id="demo"
document.getElementById("demo").innerHTML = hours + "h "
+ minutes + "m " + seconds + "s ";
// If the count down is over, write some text
if (distance < 0) {
clearInterval(x);
document.getElementById("demo").innerHTML = "EXPIRED";
}
}, 1000);
</script>
When I use var now = new Date().getTime(); the countdown works. What is the problem in my code ?
Although I'm still not clear on what you want, I believe the following code behaves how you want. The trick is that you need to update now at every interval.
// given the city's UTC offset
function calcTime(city, offset) { .. unchanged ..}
var xx = calcTime('country1', '+3');
// Set the date we're counting down to
var countDownDate = new Date(xx).getTime();
// Update the count down every 1 second
var x = setInterval(function() {
// calculate the current time
var now = new Date(calcTime('country2', '-1')).getTime();
// Get todays date and time //1527885631789
//var now2 = new Date().getTime(); //1527871237519
// Find the distance between now an the count down date
var distance = countDownDate - now;
// Time calculations for days, hours, minutes and seconds
var days = Math.floor(distance / (1000 * 60 * 60 * 24));
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Output the result in an element with id="demo"
console.log(hours + "h " + minutes + "m " + seconds + "s ");
// If the count down is over, write some text
if (distance < 0) {
clearInterval(x);
console.log("EXPIRED");
}
}, 1000);
Related
// Set the date we're counting down to
var countDownDate = new Date("July 26, 2022 19:00:00").getTime();
// Update the count down every 1 second
var countdownfunction = setInterval(function() {
// Get todays date and time
var now = new Date().getTime();
// Find the distance between now an the count down date
var distance = countDownDate - now;
// Time calculations for days, hours, minutes and seconds
var days = Math.floor(distance / (1000 * 60 * 60 * 24));
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Output the result in an element with id="demo"
document.getElementById("countdown").innerHTML = days + "d " + hours + "h "
+ minutes + "m " + seconds + "s ";
// If the count down is over, write some text
if (distance < 0) {
clearInterval(countdownfunction);
document.getElementById("countdown").innerHTML = "Refresh the page! Ctrl+F5";
}
}, 1000);
This is my current javascript, but it shows a differnt end date regarding on which timezone their computer is currently set to, is there an easy way to fix this?
I would like to create a counter that reset every week, I found a code that more or less works, but when It goes to 0, it appears negative.... -1d -1h -2m -5s
<script>
// Set the date we're counting down to
var countDownDate = new Date("Jan 29, 2021 20:21:0").getTime();
// Update the count down every 1 second
var x = setInterval(function() {
// Get todays date and time
var now = new Date().getTime();
// Find the distance between now an the count down date
var distance = countDownDate - now;
// Time calculations for days, hours, minutes and seconds
var days = Math.floor(distance / (1000 * 60 * 60 * 24));
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Display the result in the element with id="demo"
document.getElementById("demo").innerHTML = days + "d " + hours + "h "
+ minutes + "m " + seconds + "s ";
// If the count down is finished, write some text
if (distance < 0) {
//document.getElementById("demo").innerHTML = "GAME DAY";
if(distance < - 1000 * 60 * 60* 24){ // if its past the "game day"
// reset timer to next week
countDownDate += 1000 * 60 * 60 * 24 * 7
}
}
}, 1000);
</script>
<span id="demo"></span>
Instead of hard-coding the date, you need to calculate the next date based on the current date.
Something like this, though you'd be better of moving the magic numbers (5 and 20) into variables.
let getNextGameDayTime = function() {
let now = new Date();
let dayOfTheWeek = now.getDay();
let dayOffset = 5 - dayOfTheWeek; // Friday is the 5th day of the week
if (dayOffset < 0 || (dayOffset === 0 && now.getHours() > 20)) {
dayOffset += 7;
}
let result = new Date();
result.setDate(result.getDate() + dayOffset);
result.setHours(20);
result.setMinutes(0);
result.setSeconds(0);
result.setMilliseconds(0);
return result;
}
console.log(getNextGameDayTime());
As for not displaying the message for the hour after a countdown has finished, you could use the resulting distance for this.
I'm trying to have a simple countdown timer that converts a time given on a page to a countdown.
It works, but my current issue is how the normal date is shown and then later it's parsed by the JavaScript. I want it parsed by JS right away so a user doesn't see it flicking between the date and the countdown timer.
It converts this to the countdown:
<span class="countdown">12/10/20 13:10:00</span>
This is the code:
if ($('.countdown').length)
{
$.each( $('.countdown'), function( key, value )
{
var time_listed = $(value).text();
var countdown_object = $(value);
// Set the date we're counting down to
var countDownDate = new Date(time_listed).getTime();
// Update the count down every 1 second
var x = setInterval(function()
{
// Get today's date and time
var now = new Date().getTime();
// Find the distance between now and the count down date
var distance = countDownDate - now;
// Time calculations for days, hours, minutes and seconds
var days = Math.floor(distance / (1000 * 60 * 60 * 24));
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Display the result in the element with id="demo"
countdown_object.text (days + " days " + hours + "h "
+ minutes + "m " + seconds + "s ");
// If the count down is finished, write some text
if (distance < 0)
{
clearInterval(x);
countdown_object.text("EXPIRED");
}
}, 1000);
});
}
What I am asking for, is suggestions on how to get around this problem. Is the only way to have it loaded before the HTML or what? I'm confused on the best practices for this. Everywhere keeps telling me to defer JavaScript loading...but what about stuff like this that changes the content?
In cases like this, is it a good idea to have a "core" file for content-changing stuff that loads right away, then the rest after the content or what?
The problems comes from setInterval not executing automatically , which is normal. Here's a work around it:
if ($('.countdown').length)
{
$.each( $('.countdown'), function( key, value )
{
var time_listed = $(value).text();
var countdown_object = $(value);
// Set the date we're counting down to
var countDownDate = new Date(time_listed).getTime();
var counterFunction = function()
{
// Get today's date and time
var now = new Date().getTime();
// Find the distance between now and the count down date
var distance = countDownDate - now;
// Time calculations for days, hours, minutes and seconds
var days = Math.floor(distance / (1000 * 60 * 60 * 24));
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Display the result in the element with id="demo"
countdown_object.text (days + " days " + hours + "h "
+ minutes + "m " + seconds + "s ");
// If the count down is finished, write some text
if (distance < 0)
{
clearInterval(x);
countdown_object.text("EXPIRED");
}
return counterFunction;
}
// Update the count down every 1 second
var x = setInterval(counterFunction(), 1000);
});
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<span class="countdown">12/10/20 13:10:00</span>
I suggest to put the date in data-date attr, like this:
<span data-date="12/10/20 13:10:00" class="countdown"></span>
than the script:
if ($('.countdown').length)
{
$.each( $('.countdown'), function( key, value )
{
var time_listed = $(value).attr("data-date");
var countdown_object = $(value);
// Set the date we're counting down to
var countDownDate = new Date(time_listed).getTime();
// Update the count down every 1 second
var x = setInterval(function()
{
// Get today's date and time
var now = new Date().getTime();
// Find the distance between now and the count down date
var distance = countDownDate - now;
// Time calculations for days, hours, minutes and seconds
var days = Math.floor(distance / (1000 * 60 * 60 * 24));
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Display the result in the element with id="demo"
countdown_object.text (days + " days " + hours + "h "
+ minutes + "m " + seconds + "s ");
// If the count down is finished, write some text
if (distance < 0)
{
clearInterval(x);
countdown_object.text("EXPIRED");
}
}, 1000);
});
}
https://jsfiddle.net/750o1neh/
I'm creating a countdown timer for a user selected time. For that I have developed following function.
function countdownTimeStart(){
var countDownDate = new Date("Sep 5, 2018 15:37:25").getTime();
var x = setInterval(function() {
// Get to days date and time
var now = new Date().getTime();
// Find the distance between now an the count down date
var distance = countDownDate - now;
// Time calculations for days, hours, minutes and seconds
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Output the result in an element with id="demo"
document.getElementById("demo1").innerHTML = hours + ": "
+ minutes + ": " + seconds + " ";
// If the count down is over, write some text
if (distance < 0) {
clearInterval(x);
document.getElementById("demo1").innerHTML = "EXPIRED";
}
}, 1000);
}
This works fine. But I want to get a user selected value from a text input instead of var countDownDate = new Date("Sep 5, 2018 15:37:25").getTime();
Such as
<input type = "text" id = "picker-dates" value="08:30:20">
So can anyone help me to get this input value to my javascript function.
First get the time value from the input using the getElementById and then split that value with colon : to get the hour, minutes and seconds. With these value you can use setHours in the current date to set the time specified in the input.
function countdownTimeStart(){
var time = document.getElementById("picker-dates").value;
time = time.split(':');
var date = new Date();
var countDownDate = date.setHours(time[0],time[1],time[2]);
var x = setInterval(function() {
// Get to days date and time
var now = new Date().getTime();
// Find the distance between now an the count down date
var distance = countDownDate - now;
// Time calculations for days, hours, minutes and seconds
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Output the result in an element with id="demo"
document.getElementById("demo1").innerHTML = hours + ": "
+ minutes + ": " + seconds + " ";
// If the count down is over, write some text
if (distance < 0) {
clearInterval(x);
document.getElementById("demo1").innerHTML = "EXPIRED";
}
}, 1000);
}
countdownTimeStart();
<input type = "text" id = "picker-dates" value="14:30:20">
<div id='demo1'></div>
You can do like this, please have a look and if it doesn't work please let me know.
var selectedValue = document.getElementById("picker-dates").value;
use jquery: $('#picker-dates').val()
This code for a countdown timer is taken from W3Schools:
// Set the date we're counting down to
var d = new Date();
var n = d.getTimezoneOffset() * 60000;
var countDownDate = new Date("May 2, 2018 15:54:25").getTime();
// Update the count down every 1 second
var x = setInterval(function() {
// Get todays date and time
var now = new Date().getTime();
// Find the distance between now an the count down date
var distance = countDownDate - now - n;
// Time calculations for days, hours, minutes and seconds
var days = Math.floor(distance / (1000 * 60 * 60 * 24));
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Output the result in an element with id="demo"
document.getElementById("demo").innerHTML = days + "d " + hours + "h "
+ minutes + "m " + seconds + "s ";
// If the count down is over, write some text
if (distance < 0) {
clearInterval(x);
document.getElementById("demo").innerHTML = "EXPIRED";
}
}, 1000);
There was a big issue with it: any date I enter would not work for different timezones, as if it was +1 hour UTC it would expire, and it would be an hour long if it was -1.
So I added the d.getTimezoneOffset() * 60000; to get the milliseconds difference, and then took it off, so if there is any difference it should calculate it.
Will it always work if I put an UTC date in the future, or is there a possible difference I don't know about (for example a special country or daylight savings that could mess it up)?