This example shows an analog clock face with twelve, three, six, and nine labeled, rendered as SVG elements within a React component. Three rotating rectangular hands indicate hours, minutes, and seconds, using D3’s `rect` and React’s JSX syntax. The clock uses native SVG `<animateTransform>` elements to rotate each hand continuously, with durations of 60, 3600, and 216000 seconds, while D3 v5 and React 16 manage the rendering and structure.