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