Overview
- The analysis covers 37.5 million de-identified Copilot conversations from January to September 2025, with commercial and educational accounts excluded.
- On mobile, health-related questions lead at all times, reflecting growing use of Copilot for personal advice and wellness guidance.
- On desktop, work and technology dominate during typical office hours, indicating strong productivity use even outside enterprise accounts.
- Topic rhythms emerge over time, with programming spiking on weekdays, gaming on weekends, late-night rises in religion and philosophy, commute-time travel planning, and February surges in relationships and personal growth around Valentine’s Day.
- Microsoft presents the findings as inputs for product design and responsibility work, and CEO Mustafa Suleyman highlighted the day, time-of-day, and time-of-year trends publicly.