How to Use the Earth 3D Globe - Step by Step
The Earth 3D Globe loads in two beats: a live clock line (your local time and UTC) ticks immediately, then the globe itself appears once the 0.7 MB engine finishes its one-time download. Here is each control in order.
Step 1 - read the day/night line
The lit half of the globe is where the sun is above the horizon right now, computed from your device's clock; the dark half is in night, with a soft stylized glow along its coastlines. The line between them - the terminator - is live, and the readout above the scene names the point where the sun is directly overhead.
Step 2 - spin and zoom
Drag anywhere on the globe to spin it; scroll or pinch to zoom from a full-planet view down to coastline level. The Fullscreen button puts the scene on your whole screen; Escape exits.
Step 3 - click a point
Click (not drag) any spot on the globe. The panel reports its latitude and longitude, whether it is in daylight, night, or near the terminator, and its approximate local solar time - sun time derived from longitude, not civil timezone time.
Step 4 - scrub time
The Time scrub slider previews the day/night line up to 12 hours ahead or behind - slide it and watch dawn cross a continent. The label shows the offset, the sun readout notes that a preview is active, and the Now button snaps everything back to the live clock.
Step 5 - trust it the right amount
The sun position uses a standard approximation good to about one degree - plenty to see where day is, not an astronomical ephemeris. Coastlines are the simplified public-domain Natural Earth 1:110m dataset, and the night glow is a stylized effect, not real city-light data. The page reads only your clock, never your location.
Wondering how this compares with a full virtual-globe app? See the Earth globe vs alternatives.
For the specific moments when the Earth 3D Globe is the right pick - quick time-zone checks, class demonstrations, short breaks - see when to use the Earth 3D Globe.
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