It outputs the time like this:
<time datetime="2023-11-03T10:00:00Z" itemprop="startDate">Friday 3 November 2023 10:00</time>
The time zone of the website is set to London, so the UTC time for this is actually 09:00, because the UK is currently on daylight savings times.
Changing the "Time zone override" in the form display doesn't make a difference.
For a time specified as 10:00 in the UK, it should show T09:00:00Z in the time tag attributes.
Closed: works as designed
2.1
Code