Clock Spins displays the current time as a set of six concentric annular arcs, each representing seconds, minutes, hours, weekday, date, and month. The arcs fill progressively as each unit advances, with color and label position updating via a d3.timer loop. Using D3 v3’s d3.svg.arc and d3.time.format, the visualization renders in SVG with animated transitions, mapping each time field’s fractional value to an arc angle and radius.