Moment.js Timezone - CONSIDER a date/time to be in a different timezone when outputting
<p>I know this seems like a straight forward question - but although Moment.js and moment timezone are very powerful tools for getting/setting and formatting dates..</p>

<p>I'm having an issue snapping my application to a single timezone.</p>

<p>What I want, is for a user to choose from a date/time picker - and to send that as a unix timestamp in UTC..  but the date/time picker MUST be considered to be BST.</p>

<p>In other words, even if you're using the site from abroad - the date/time you select should be the UTC value for if you had chosen it in the UK.</p>

<pre><code>var local = moment(dateTime).unix();
var london = moment(dateTime).tz('Europe/London').unix();
var berlin = moment(dateTime).tz('Europe/Berlin').unix();
</code></pre>

<p>All 3 variables will equal the SAME UTC timestamp on the same machine, but a different timestamp on another machine running in a different timezone.</p>

<p>Think about it... if my date/time was 3pm on Saturday..  that's a DIFFERENT UTC in London than it is in Berlin, since it will occur one hour earlier in Berlin.</p>

<p>How do I force a date/time to be considered as a specific timezone?</p>

<p>Thanks :-)</p>