can someone help me with this code, I'm really bad using JS
I want to show only Brazil time in the application, regardless of where the user accesses the application.
<head>
<script>
function display_c() {
var refresh = 1000; // Refresh rate in milli seconds
mytime = setTimeout('display_ct()', refresh)
}
function display_ct() {
var strcount
var x = new Date().toLocaleString("en-US", {timeZone: "America/Sao_Paulo"});
var x1 = x.getMonth() + 1 + "/" + x.getDate() + "/" + x.getYear();
x1 = x1 + " - " + x.getHours( ) + ":" + x.getMinutes() + ":" + x.getSeconds();
document.getElementById('ct').innerHTML = x1;
tt = display_c();
}
</script>
</head>
<body onload=display_ct();>
<span id='ct' ></span>
</body>
Error
painel:48 Uncaught TypeError: x.getMonth is not a function
at display_ct (painel:48)
at onload (painel:57)
This code will do what you want. Your problem was that you used toLocaleString on your x variable and then tried to use the getMonth() method on it. However, that variable is no longer a date; when you use toLocaleString you turn it into a String. The local string, by default, is formatted almost how you like it. I only had to change a little bit to use the dash in between the date and time instead of the default comma.
var timeDisplay = document.getElementById("time");
function refreshTime() {
var dateString = new Date().toLocaleString("en-US", {timeZone: "America/Sao_Paulo"});
var formattedString = dateString.replace(", ", " - ");
timeDisplay.innerHTML = formattedString;
}
setInterval(refreshTime, 1000);
<p id="time"></p>
// Inside your Javascript file
function startTime() {
var today = new Date();
var h = today.getHours();
var m = today.getMinutes();
var s = today.getSeconds();
m = checkTime(m);
s = checkTime(s);
document.getElementById('txt').innerHTML =
h + ":" + m + ":" + s;
var t = setTimeout(startTime, 500);
}
function checkTime(i) {
if (i < 10) {i = "0" + i}; // add zero in front of numbers < 10
return i;
}
<!-- Inside your HTML file -->
<body onload="startTime()">
<div id="txt"></div>
</body>
Related
This question already has answers here:
Fire event at a certain time of the day
(4 answers)
Closed 11 months ago.
im a noob in js xd, i want to put a text in an html in a choosen time of a clock!
i want it to print "make a wish" when its 11:11
the code:
function startTime() {
const today = new Date();
let h = today.getHours();
let m = today.getMinutes();
let s = today.getSeconds();
m = checkTime(m);
s = checkTime(s);
document.getElementById('txt').innerHTML = h + ":" + m + ":" + s;
setTimeout(startTime, 1000);
}
function checkTime(i) {
if (i < 10) {i = "0" + i}; // add zero in front of numbers < 10
return i;
}
This can be done via setInterval in javascript with some basic if condition checks.
First create a date object via new Date() then get hours and minutes, check if the hour and minute is equal to your specified time then print the value.
We need to set an interval of 60 seconds which is equal to 60,000 milliseconds to not print again the same value in that minute.
You can try this -
setInterval(function(){
var date = new Date();
if(date.getHours() === 11 && date.getMinutes() === 11){
console.log("make a wish");
}
}, 60000);
Something like this will do.
function startTime() {
const today = new Date();
let h = today.getHours();
let m = today.getMinutes();
let s = today.getSeconds();
m = checkTime(m);
s = checkTime(s);
document.getElementById('txt').innerHTML = h + ":" + m + ":" + s;
if (h == 11 && m == 11) {
console.log("Make a wish");
} else {
setTimeout(startTime, 1000);
}
}
function checkTime(i) {
if (i < 10) { i = "0" + i }; // add zero in front of numbers < 10
return i;
}
startTime();
<p id="txt"></p>
Use the callback function from SetInterval and get currentt time. afterwards you can check if it 11:11. If successful dont forget to clear the intervall.
const innterval = setInterval(function () {
check()
}, 5000);
function check() {
var today = new Date();
var t1111 = today.getHours() + ':' + today.getMinutes();
if (t1111 === '11:11') {
alert('11:11')
document.getElementById('txt').innerHTML = t111 + ' PARTY!'
clearInterval(innterval);
}
console.log('Current time: ' + t1111 + ' still Waiting')
}
<div id="txt"></div>
I'm creating simple web app that shows you what date and time is it now. It works good but i want to make it to be more dynamic so you can see time counting. What is best way to do this?
var hdate = document.getElementById('time');
var body = document.querySelector('body');
var bgM = document.getElementsByClassName('bgMorning')
var today = new Date();
var date = today.getFullYear()+'-'+(today.getMonth()+1)+'-'+today.getDate();
var time = today.getHours() + ":" + today.getMinutes() + ":" + today.getSeconds();
var dateTime = date+' '+time;
hdate.textContent = dateTime;
you could write your code inside an interval like this to update it every second.
setInterval(function(){
//write you code here to be executed every second
}, 1000);
you'll need to re-render your display element too. Use something like this
<html>
<p id="displayElement"></p>
<script>
//use this code inside your setInterval function so it re-renders every second
document.getElementById("displayElement").innerHTML = `<p>${time}</p>`;
</script>
</html>
let me know how that works!
You just need to call setInterval(func, interval_milliseconds).
Also try using template literals (e.g. ${hours}:${minutes}) to construct your strings in a more readable style.
Use let as opposed to var unless you need to support old versions of I.E.
let timeEl = document.getElementById('time');
let updateTimeEl = () => {
let today = new Date();
let date = `${today.getFullYear()}-${today.getMonth() + 1}-${today.getDate()}`;
let time = `${today.getHours()}:${today.getMinutes()}:${today.getSeconds()}`;
timeEl.textContent = `${date} ${time}`;
};
setInterval(updateTimeEl, 1000);
<div id="time"></div>
Try this.
function startTime() {
var today = new Date();
var h = today.getHours();
var m = today.getMinutes();
var s = today.getSeconds();
// add a zero in front of numbers<10
m = checkTime(m);
s = checkTime(s);
hdate.textContent = h + ":" + m + ":" + s;
// document.getElementById('time').innerHTML = h + ":" + m + ":" + s;
t = setTimeout(function() {
startTime()
}, 500);
}
startTime(); //it starts the timer
function checkTime(i) {
if (i < 10) {
i = "0" + i;
}
return i;
}
Not sure if your code is the best, but you can just wrap it in a setInterval.
setInterval(function(){
var hdate = document.getElementById('time');
var body = document.querySelector('body');
var bgM = document.getElementsByClassName('bgMorning')
var today = new Date();
var date = today.getFullYear()+'-'+(today.getMonth()+1)+'-'+today.getDate();
var time = today.getHours() + ":" + today.getMinutes() + ":" +
today.getSeconds();
var dateTime = date+' '+time;
console.log(dateTime)
}, 1000)
The second argument in the setIterval function is the interval that the code runs in miliseconds. So this will print to the console every second (1000ms -> 1s)
I have be attempting this for quite a while now and cant get my head around it. I have a javascript which displays a live time. What i am trying to do is build an if statement that says if it hits 23:00:00 then open a link. can anyone help please? anything i use just blanks out the time :(
<script>
function startTime() {
var today = new Date();
var h = today.getHours();
var m = today.getMinutes();
var s = today.getSeconds();
m = checkTime(m);
s = checkTime(s);
document.getElementById('txt').innerHTML = h + ":" + m + ":" + s;
var t = setTimeout(startTime, 500);
}
function checkTime(i) {
if (i < 10) {i = "0" + i};
return i;
}
</script>
</head>
<body onload="startTime()">
<div id="txt"></div>
You already calculate the time, just check to see if it's the time you want, and open a url.
function startTime() {
var today = new Date('Thu Jul 26 2018 23:00:00 GMT-0700 (Pacific Daylight Time)')
var h = today.getHours();
var m = today.getMinutes();
var s = today.getSeconds();
if (h === 23 && m === 0 && s === 0) {
window.open('https://www.stackoverflow.com', '_blank');
}
m = checkTime(m);
s = checkTime(s);
document.getElementById('txt').innerHTML = h + ":" + m + ":" + s;
var t = setTimeout(startTime, 500);
}
function checkTime(i) {
if (i < 10) {
i = "0" + i
};
return i;
}
<body onload="startTime()">
<div id="txt"></div>
</body>
A simple
...
document.getElementById('txt').innerHTML = h + ":" + m + ":" + s;
if (h == "23" && m == "00" && s == "00") {
alert("open link from here");
}
...
would do the trick.
Note:
You also have to check for s otherwise you'll open a new page every second.
refresh every second :
function timeLoop(){
var today = new Date();
var h = today.getHours();
var m = today.getMinutes();
var s = today.getSeconds();
var timeString = h+":"+m+":"+s
// print time
document.getElementById('txt').innerHTML = h + ":" + m + ":" + s;
// check timeString
if ( timeString === "23:00:00"){
// perform you actions here
}
}
document.body.onload = function(){
setInterval( timeLoop, 1000 );
}
What's happening here is
when body is loaded the timeLoop function starts looping every second, each loop updates the time displayed and checking it.
you can execute whatever code or function in side the if statement.
hope this helps
I think a simple setInterval() checking for the hour only would do it. The following code sets a interval checking the hour every 1 second. If the hour is 23 the interval is cleared to ensure that the triggered action runs only once and then does whatever you want to do. There is no need to check for minutes and seconds as well and this way you don't need to worry about leading zeros.
var interval = window.setInterval(function(){
var h = new Date().getHours();
if (h === 23) {
// clear interval to ensure that code runs only once
window.clearInterval(interval);
// do whatever you like
console.log(h);
}
},1000);
How do I set format on time?
It shows 16:9:2
It should show 16:09:02
my code:
setInterval(function _timer() {
var time = new Date();
var h = time.getHours();
var m = time.getMinutes();
var s = time.getSeconds();
var fullTime = h + ":" + m + ":" + s;
fullTime.format("hh-MM-ss");// this is not working
$("#time").html(fullTime);
1000
});
You can try like this:
var time = new Date();
var h = time.getHours();
var m = time.getMinutes();
var s = time.getSeconds();
alert(
("0" + h).slice(-2) + ":" +
("0" + m).slice(-2) + ":" +
("0" + s).slice(-2));
If you're able to use an external dependency, the momentjs library is one of the best out there!
You could replace all your formatting with:
var now = moment().format("HH:mm:ss");
I want to make a webpage that displays the current time. When the "12-hour format" button is clicked, the time in 12-hour time will display in the div area. When the "24-hour format" button is clicked, the time will show in 24-hour time in the div area. Currently nothing happens when these buttons are clicked. Help!
HTML:
<html>
<head>
<title>Clock</title>
<script type="text/javascript" src="clock.js"></script>
</head>
<body>
<div id="textbox"></div>
<br/>
<button type="radio" onclick="getTwelveHrs()">12 Hour Format</button>
<button type="radio" onclick="getTwentyFourHrs()">24 Hour Format</button>
</body>
</html>
JavaScript:
function getTwelveHours{
if (i < 10) {
i = "0" + i;
}
return i;
}
function startTime() {
var today = new Date();
var h = today.getHours();
var m = today.getMinutes();
var s = today.getSeconds();
m = checkTime(m);
s = checkTime(s);
document.getElementById('textbox').innerHTML = h + ":" + m + ":" + s;
t = setTimeout(function () {
startTime()
}, 500);
}
startTime();
function getTwentyFourHrs() {
var today = new Date();
var h = today.getHours();
var m = today.getMinutes();
var s = today.getSeconds();
m = checkTime(m);
s = checkTime(s);
document.getElementById('textbox').innerHTML = h + ":" + m + ":" + s;
var t = setTimeout(function() {
startTime()
}, 500);
}
function checkTime(i) {
if (i < 10) {
i = "0" + i
};
return i;
}
Why dont you just use a library like Moment.js to do this for you.
http://momentjs.com/docs/
H, HH 24 hour time
h, or hh 12 hour time (use in conjunction with a or A)
so just use this code in JavaScript when using moment.js
the moment() method returns the current date in your specific format. So when you the user clicks the button you can call the following method on each button
moment().format("YYYY-MM-DD HH:mm"); // 24H clock
moment().format("YYYY-MM-DD hh:mm"); // 12H clock
Havn't tested this , but it should work
The 12 hour format can be obtained by using moment js a good library for performing time & date operations.
moment().format('YYYY-MM-DD, hh:mm:ss A')
where Post or ante meridiem (Note the only one of the character a p are also considered valid)
Link for Moment Js :-
https://momentjs.com
Agreed with others, yes issues with that code but for time conversion part - maybe you could do something simple like this using JavaScript built-in functions :
For 12-hr Format :
let formattedTime = new Date().toLocaleTimeString('en-US');
console.log(formattedTime)
For 24-hr Format :
let currentDateTime = new Date();
let formattedTime = currentDateTime.getHours() + ":" + currentDateTime.getMinutes() +":" + currentDateTime.getSeconds();
console.log(formattedTime)
const time = new Date().getHours('en-US',{hour12:false});
const time = new Date().getHours('en-US',{hour12:true});
To be perfectly honest, I'm not entirely sure how you were trying to make this happen, but I think I understand what you wanted to have happen.
Give this a try:
window.onload = function() {
var h, m, s;
document.getElementById('twelveHrs').style.display = 'none';
document.getElementById('twentyFourHrs').style.display = 'none';
getTwelveHrs();
getTwentyFourHrs();
function getTwelveHrs() {
var tag = 'AM';
checkTime();
if(h > 12) {
h -= 12
tag = 'PM';
}
document.getElementById('twelveHrs').innerHTML = h + ':' + m + ':' + s + ' ' + tag;
t = setTimeout(function() {
getTwelveHrs()
}, 1000);
}
function getTwentyFourHrs() {
checkTime();
document.getElementById('twentyFourHrs').innerHTML = h + ':' + m + ':' + s;
var t = setTimeout(function() {
getTwentyFourHrs()
}, 1000);
}
function checkTime() {
var today = new Date();
h = today.getHours();
m = today.getMinutes();
s = today.getSeconds();
if(h < 10)
h = '0' + h;
if(m < 10)
m = '0' + m;
if(s < 10)
s = '0' + s;
return h, m, s;
}
}
function displayTwelveHrs() {
document.getElementById('twentyFourHrs').style.display = 'none';
document.getElementById('twelveHrs').style.display = '';
}
function displayTwentyFourHrs() {
document.getElementById('twelveHrs').style.display = 'none';
document.getElementById('twentyFourHrs').style.display = '';
}
Then replace your HTML with:
<div id="twelveHrs"></div>
<div id="twentyFourHrs"></div>
<br />
<button type="radio" onclick="displayTwelveHrs()">12 Hour Format</button>
<button type="radio" onclick="displayTwentyFourHrs()">24 Hour Format</button>
Basically, when the page loads, it'll start the clocks and hide the corresponding div tags. Then you click a button, it will then display the div you want while hiding the other.
A working JSFiddle can be found at: http://jsfiddle.net/fp3Luwzc/
Since deadline at work is coming and right now is really just around the corner, I have decided to answer this 5 years old question.
Most people recommended using Moment.js library, which is really fine, because in most cases there is no point in reinventing the wheel and trusting a library with 9,897,199 weekly npm downloads is without any doubts a sane choice.
However, since the only answer providing solution based on OP's code seems to have some bugs in it; I would like to humbly propose my solution:
const FORMATS = {
TwelveHours: 12,
TwentyFourHours: 24
}
class Clock {
format = FORMATS.TwentyFourHours;
constructor(clockDivId) {
this.clockDivId = clockDivId;
this.clockInterval = setInterval(() => {
document.getElementById(clockDivId).innerHTML = this.getCurrentTime().format(this.format);
}, 500)
}
getCurrentTime() {
let today = new Date();
return new Time(today.getHours(), today.getMinutes(), today.getSeconds());
}
switchTo12HourFormat() {
this.format = FORMATS.TwelveHours
}
switchTo24HourFormat() {
this.format = FORMATS.TwentyFourHours
}
destroy() {
clearInterval(this.clockInterval);
}
}
class Time {
constructor(hours, minutes, seconds) {
this.hours = hours;
this.minutes = minutes;
this.seconds = seconds;
}
format(type) {
switch (type) {
case FORMATS.TwentyFourHours: {
return this.print(this.hours)
}
case FORMATS.TwelveHours: {
let tag = this.hours >= 12 ? 'p.m' : 'a.m';
let hours = this.hours % 12;
if (hours == 0) {
hours = 12;
}
return this.print(hours) + ' ' + tag;
}
}
}
//private
to2Digits(number) {
return number < 10 ? '0' + number : '' + number;
}
print(hours) {
return this.to2Digits(hours) + ':' + this.to2Digits(this.minutes) + ':' + this.to2Digits(this.seconds);
}
}
let clock = new Clock("clock");
<html>
<head>
<title>Clock</title>
</head>
<body>
<div id="clock"></div>
<br/>
<button onclick="clock.switchTo12HourFormat()">12 Hour Format</button>
<button onclick="clock.switchTo24HourFormat();">24 Hour Format</button>
</body>
</html>
Oh no, oh forking no! I have written "print" instead of "this.print" and I've run it in Google Chrome.
Basically UI got blocked by print dialog and I've lost all the code and had to write it again and now I am going home to enjoy some sleep and maybe, maybe one episode of HIMYM.