tz.js/index.html

262 lines
6.9 KiB
HTML

<!DOCTYPE html>
<html lang="en" class="no-js">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width" />
<title>Convert TimeZones in Your Browser</title>
<link rel="canonical" href="https://therootcompany.github.io/tz.js/" />
<meta name="theme-color" content="#FF00FF" />
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/spcss@0.7.0" />
<style>
input {
width: 24em;
}
</style>
</head>
<body>
<!-- Content -->
<h1>
<a href="https://github.com/therootcompany/tz.js" target="_blank"
>XTZ.js</a
>
</h1>
<h3>
Current Time:
<br />
<span class="js-my-dt">YYYY-MM-DDThh:mm:ss.mmm+0000</span>
</h3>
<pre><code>new Intl.DateTimeFormat().resolvedOptions().timeZone;</code></pre>
Current Time Zone: <span class="js-my-tz">America/XXXX</span>
<br />
<pre><code>String(((new Date()).getTimezoneOffset() / 60)).padStart(2, '0') +
String(((new Date()).getTimezoneOffset() % 60)).padStart(2, '0')</code></pre>
Current Time Offset: <span class="js-my-offset">-0000</span>
<hr />
<form class="js-tz2tz">
<h3>Convert Between Time Zones:</h3>
<label>
Time:
<input
class="js-dt-xtz"
type="text"
placeholder="ex: 2021-03-14 03:15:69.000"
required
/>
</label>
<br />
<label>
Input Zone:
<input
class="js-tz1-xtz"
type="text"
placeholder="ex: UTC or America/New_York"
required
/>
</label>
<br />
<label>
Output Zone:
<input
class="js-tz2-xtz"
type="text"
placeholder="ex: America/Los_Angeles or UTC"
required
/>
</label>
<br />
<label>
ISO:
<input class="js-my-dt-xtz" type="text" disabled />
</label>
<br />
<br />
<button type="submit">Convert between Zones!</button>
<br />
</form>
<hr />
<form class="js-tz2utc">
<h3>Relative TimeZone to Absolute UTC:</h3>
<pre><code>XTZ.toUTC("<span class="js-dtx-tz">YYYY-03-14 03:15:69.000</span>", "<span class="js-tzx-tz">UTC</span>")
.toISOString()
// <span class="js-myx-dt-tz"></span></code></pre>
<label>
Time:
<input
class="js-dt-tz"
type="text"
placeholder="ex: 2021-03-14 03:15:69.000"
required
/>
</label>
<br />
<label>
Input Zone:
<input
class="js-tz-tz"
type="text"
placeholder="ex: America/New_York"
required
/>
</label>
<br />
<label>
ISO:
<input class="js-my-dt-tz" type="text" disabled />
</label>
<br />
<br />
<button type="submit">Convert to UTC!</button>
<br />
</form>
<hr />
<form class="js-utc2tz">
<h3>Absolute UTC to Relative TimeZone</h3>
<pre><code>XTZ.toTimeZone("<span class="js-dtx-utc">YYYY-03-14 03:15:69.000</span>", "<span class="js-tzx-utc">UTC</span>")
.toISOString()
// <span class="js-myx-dt-utc"></span></code></pre>
<label>
Time:
<input
class="js-dt-utc"
type="text"
placeholder="ex: 2021-03-14 03:15:69.000"
required
/>
</label>
<br />
<label>
Output Zone:
<input
class="js-tz-utc"
type="text"
placeholder="ex: America/New_York"
required
/>
</label>
<br />
<label>
ISO:
<input class="js-my-dt-utc" type="text" disabled />
</label>
<br />
<br />
<button type="submit">Convert to TZ!</button>
<br />
</form>
<hr />
<h3>Time Zones List</h3>
See the
<a href="https://en.wikipedia.org/wiki/List_of_tz_database_time_zones"
>Full List of Time Zones</a
>
on Wikipedia.
<pre>
America/New_York -0500 -0400 (Eastern Time)
America/Denver -0700 -0600 (Mountain Time)
America/Phoenix -0700 (No DST) (Arizona Time)
America/Los_Angeles -0800 -0700 (Pacific Time)
UTC Z (UTC "Zulu" Time)
Australia/Adelaide +0930 +1030 (30-min)
Asia/Kathmandu +0545 (No DST) (45-min)
Asia/Kolkata +0530 (No DST) (30-min)</pre
>
<hr />
Code at
<a href="https://github.com/therootcompany/tz.js" target="_blank"
>github.com/therootcompany/tz.js</a
>
<script src="./xtz.js"></script>
<script>
function $(sel, el) {
return (el || document.body).querySelector(sel);
}
function translate(dt, tz, tz2) {
var utc = new Date(XTZ.toUTC(dt, tz).toISOString());
if (!tz2) {
return utc;
}
return XTZ.toTimeZone(utc, tz2);
}
function toUTC() {
var curDt = $(".js-dt-tz").value;
var curTz = $(".js-tz-tz").value;
$(".js-my-dt-tz").value = XTZ.toUTC(curDt, curTz).toISOString();
$(".js-dtx-tz").innerText = curDt;
$(".js-tzx-tz").innerText = curTz;
$(".js-myx-dt-tz").innerText = $(".js-my-dt-tz").value;
}
function toTZ() {
var curDt = $(".js-dt-utc").value;
var curTz = $(".js-tz-utc").value;
$(".js-my-dt-utc").value = XTZ.toTimeZone(curDt, curTz).toISOString();
$(".js-dtx-utc").innerText = curDt;
$(".js-tzx-utc").innerText = curTz;
$(".js-myx-dt-utc").innerText = $(".js-my-dt-utc").value;
}
function xTZ() {
var curDt = $(".js-dt-xtz").value;
var inTz = $(".js-tz1-xtz").value;
var outTz = $(".js-tz2-xtz").value;
$(".js-my-dt-xtz").value = translate(curDt, inTz, outTz).toISOString();
}
var myTz = new Intl.DateTimeFormat("default", {}).resolvedOptions()
.timeZone;
$(".js-my-tz").innerText = myTz;
$(".js-tz-tz").value = myTz;
$(".js-tz-utc").value = myTz;
$(".js-tz1-xtz").value = myTz;
$(".js-tz2-xtz").value = "Asia/Kathmandu";
var myOffset = -1 * new Date().getTimezoneOffset();
$(".js-my-offset").innerText =
XTZ.formatOffset(myOffset) + " (" + myOffset + ")";
var myDate = new Date();
$(".js-my-dt").innerText = XTZ.toTimeZone(myDate, myTz).toISOString();
$(".js-dt-tz").value = XTZ.toTimeZone(myDate, myTz)
.toISOString()
.replace("T", " ")
.replace(/(Z|(\+|-)\d+)$/, "");
$(".js-dt-xtz").value = $(".js-dt-tz").value;
$(".js-dt-utc").value = myDate.toISOString();
$("form.js-utc2tz").addEventListener("submit", function (ev) {
ev.preventDefault();
ev.stopPropagation();
toTZ();
});
$("form.js-tz2utc").addEventListener("submit", function (ev) {
ev.preventDefault();
ev.stopPropagation();
toUTC();
});
toUTC();
toTZ();
xTZ();
</script>
</body>
</html>