In Contact Information, timestamp is incorrectly formatted into the GMT timezone

Time with timezone is adjusted, but then displayed with the GMT suffix:

<iq id='9e3cc4ae-860f-4822-abfa-f1566bf6a2ba' type='result' to='a@b.c/d' from='e@f.g/h'>
<time xmlns='urn:xmpp:time'>
<utc>2018-03-27T10:23:41.417Z</utc>
<tzo>02:00</tzo>
</time>
</iq>

Time for this user is displayed as: Tue 27 Mar 2018 12:23:41 PM GMT. This is two hours into the future.

It should be displayed as Tue 27 Mar 2018 12:23:41 PM GMT+0200 (preferably) or, at least, without a timezone indicator Tue 27 Mar 2018 12:23:41 PM.