Spiral timeline
A spiral timeline chart is a circular data visualization that arranges events along a spiraling path, ideal for representing long or recurring time periods in a compact and visually engaging format. Unlike linear timelines, the spiral layout wraps the timeline inward or outward in loops, allowing you to display a large number of events or extended durations within a limited area.
This format is especially effective for showing cyclical patterns—such as seasons, fiscal quarters, or historical cycles—while still allowing viewers to follow a chronological flow. The spiral’s density and number of turns can be customized, enabling you to highlight specific time intervals or accommodate different types of datasets.
amCharts allows you to create highly customizable spiral timelines, with adjustable loop counts, spacing, and orientation. It’s a powerful tool for visual storytelling, pattern recognition, and presenting complex temporal data in a space-saving and intuitive way.
Build this chart with AI
The prompt below can be used to build this chart with AI. For best coding results, use the most advanced AI models, like Claude Opus 4.6 and GPT-5.3-Codex. For more info and tips, check out amCharts AI docs.
Create a spiral timeline chart that arranges chronological project data along a spiraling circular path rather than a linear layout. Display four project modules (Module #1-4) on the Y-axis with tasks (Gathering requirements, Development, Producing specifications, Testing and QA) spanning dates from January to April 2019. Add seven milestone events (A-G) as flag markers. The spiral should wrap inward with 2 levels. Render tasks as horizontal bars with circular start and end markers. Add a horizontal scrollbar for navigation. Enable zooming and a cursor for navigation. Color-code each module distinctly. Animate with a smooth staggered animation. Use amCharts 5 library.
Demo source