> ACWST is observed only in a tiny sliver... a total length of about 340 kilometres.
It might be tiny in Australian terms but not internationally. 340km is a very similar width to the UTC+2 timezone as it runs through Finland and the Baltic states, much wider than Portugal which has its own timezone (UTC+0), and just a little under the width of Bangladesh (UTC+6, almost completely surrounded by India at UTC+5.5). Ittoqqortoormiit in Greenland has a separate timezone for an area of around 100km width.
It might be tiny in Australian terms but not internationally. 340km is a very similar width to the UTC+2 timezone as it runs through Finland and the Baltic states, much wider than Portugal which has its own timezone (UTC+0), and just a little under the width of Bangladesh (UTC+6, almost completely surrounded by India at UTC+5.5). Ittoqqortoormiit in Greenland has a separate timezone for an area of around 100km width.