Description of problem: I'm mousing over the map and it looks like it's highlighting different continents with a big square. it's not apparent to me what clicking on it will do. I may be cautious about clicking anywhere for fear it'll set me to the wrong timezone. My suggestion would be to add an icon + instructional overlay, e.g., "Click here to zoom in" over the highlight square. See attached mockup.
Created attachment 138919 [details] mockup of zoom-in instructional overlay
system-config-date-1.8.90 which is building now doesn't use "regions" anymore but a magnification scale.