title: dayjs() is in the wrong timezone
body: <h1>Problem</h1>
  <p>Calling <code>dayjs()</code> results in a date that is correct except it is off by two hours. For some reason, <code>dayjs()</code> seems to be set to the wrong time zone (GMT), when my actual time zone is GMT+2.</p>
  <h3>Expected</h3>
  <pre><code>Mon, 09 Aug 2021 17:45:55 GMT+2
  </code></pre>
  <h3>Actual</h3>
  <pre><code>Mon, 09 Aug 2021 15:45:55 GMT
  </code></pre>
  <h2>What I've tried</h2>
  <p>I have tried setting my time zone with <a href="https://day.js.org/docs/en/plugin/timezone" rel="nofollow noreferrer">the time zone plugin</a>, but that didn't seem to work:</p>
  <pre><code>import utc from 'dayjs/plugin/utc';
  import timezone from 'dayjs/plugin/timezone';
  dayjs.extend(utc);
  dayjs.extend(timezone);
  dayjs().tz('Europe/Berlin'); // unchanged Mon, 09 Aug 2021 15:45:55 GMT
  </code></pre>
  <p>I'm on Ubuntu 20.04.2 LTS, so I checked:</p>
  <pre><code>$ timedatectl 
  Local time: Mo 2021-08-09 17:45:55 CEST
  Universal time: Mo 2021-08-09 15:45:55 UTC 
  RTC time: Mo 2021-08-09 17:45:55     
  Time zone: Europe/Berlin (CEST, +0200)
  System clock synchronized: yes                        
  NTP service: active                     
  RTC in local TZ: yes                        
  
  Warning: The system is configured to read the RTC time in the local time zone.
  This mode cannot be fully supported. It will create various problems
  with time zone changes and daylight saving time adjustments. The RTC
  time is never updated, it relies on external facilities to maintain it.
  If at all possible, use RTC in UTC by calling
  'timedatectl set-local-rtc 0'.
  </code></pre>
  <p>I am coding in TypeScript, so I also checked if creating a <code>Date</code> object would result in the wrong time too, but it did not:</p>
  <pre><code>const time = new Date(); // results in correct time
  </code></pre>
  <h3>TL;DR</h3>
  <p><code>dayjs()</code> is in GMT, but should be in GMT+2. Why?</p>