That’s one of the normal Continent/City time zones, not one of the weird Country/ZoneName ones that have been deprecated for ages. “America” here refers to the continent or continents[0], not the USA.
0: Note that different cultures disagree on whether there are two continents called North America and South America, or one continent called America.
0: Note that different cultures disagree on whether there are two continents called North America and South America, or one continent called America.