He means the clocks are offset in the summer and not the winter. If we stop changing the clocks and just stick on GMT all year it won't affect anything in winter.
Huh? How could they change once a year? The point is winter time is GMT and summer time is the change. The UK did remain on BST once, but that was during the war (interestingly it also went to double summer time in the summer).
Technically correct.
But it's more like "clocks change once a year and then that change is reverted"
We had 4 hours of night in the highlands and that was hard to sleep through.
Sure, but in the case I was talking about the UK switched to BST (i.e. GMT+1) year-round. This has the effect of making it darker on winter mornings.