Éric Araujo firstname.lastname@example.org added the comment:
timedelta() showing offset from UTC, negative values indicating West of UTC
+1 for the last one.
Micro nit: I would not put parentheses when referring to the type (we talk about “a list”, not “a list()”).
Micro nit: Some languages use case to distinguish direction vs. region, e.g. in French we have “ouest” and “Ouest”. Does that apply to English?