...

Exception: the Cycle Time Chart doesn’t offer Grouping options because it focuses on tracking individual cycle times. Grouping would obscure the detailed view needed to analyze specific patterns or outliersthe chart groups issues based on their exact cycle or lead time. Because the chart already organizes issues by their specific duration, adding a grouping option by calendar units (such as weeks or sprints) isn't necessary or helpful.

Units

Display your data in the units that make the most sense — hours, days, weeks, bi-weeks or months. Adapt your view to match your project’s pacing.

...