F. Scott Fitzgerald once observed that “in a real dark night of the soul, it is always three o’clock in the morning.” Microsoft’s latest Copilot usage analysis suggests this nocturnal tendency toward existential contemplation persists in the AI age—with religion and philosophy conversations rising through the rankings during early morning hours.
The Microsoft AI (MAI) research team analysed 37.5 million de-identified conversations to uncover when and how users turn to Copilot for different needs. The findings, published December 10, reveal distinct AI usage patterns that follow surprisingly human rhythms—from late-night philosophical queries to Valentine’s Day relationship anxiety, and the strict divide between weekday coding and weekend gaming.
Late-night existential queries and daytime travel planning
According to the report authored by Bea Costa-Gomes and Seth Spielman, religion and philosophy conversations rise through the rankings during early morning hours. Travel-related discussions, by contrast, peak during typical commuting times, suggesting users plan trips while in transit.
“The larger-than-life questions seem to have a rise during the early hours of the morning, with ‘Religion and Philosophy’ rising through the ranks,” the researchers noted in their paper.
This temporal divide reflects different states of mind: practical planning during active hours versus contemplative questioning during quiet moments. The pattern challenges assumptions about AI as merely a productivity tool, revealing its role in addressing fundamental human curiosity.
Health dominates mobile usage across all hours
Health-related topics consistently ranked as the most common conversation type on mobile devices throughout 2025, regardless of time, day, or month. Users turned to Copilot for wellness tracking, health tips, and daily routine management with notable consistency.
“When it comes to mobile, with its intimacy and immediacy, nothing tops our health,” the researchers wrote.
The dominance of health queries on mobile devices—but not desktops—suggests users view smartphones as more personal companions for sensitive topics. This usage analysis indicates AI assistants are becoming integrated into daily health management routines.
Programming rises weekdays, gaming dominates weekends
August data revealed a clear cyclical pattern between programming and gaming topics. Programming conversations climbed from Monday through Friday, while gaming queries surged on weekends. Users were equally likely to engage with both topics, but strictly segregated by day of the week.
“This crossover hints at a vibrant, creative community that loves to code during the week and play during the weekends in equal measure,” according to the report.
The strict temporal separation suggests users maintain clear boundaries between work and leisure, even when both involve digital activities.
February’s Valentine’s Day spike in relationship queries
The Copilot usage analysis showed February brought a pronounced spike in relationship-related conversations, peaking specifically on Valentine’s Day. Personal growth and wellness discussions also increased before the holiday, as users sought guidance for navigating romantic expectations.
“Whether it was in preparing for Valentine’s day, or facing the day and the relationships, we saw a spike in activity as people turned to Copilot for guidance, reminders, and support,” the researchers observed.
This pattern reveals how AI usage patterns align with cultural moments and social pressures, with users seeking private counsel from AI during emotionally charged periods.
From search to advice: shifting usage patterns
While information search remains Copilot’s most popular function, Microsoft’s analysis detected a clear rise in users seeking advice, particularly on personal topics including relationships and life decisions.
“This growing trend highlights how digital tools are becoming trusted companions for life’s everyday questions,” the report stated.
The shift from purely informational queries to advice-seeking represents an evolution in how users conceptualise AI assistants—from search engines to consultants.
Privacy-preserving methodology
Microsoft’s research team emphasised that their analysis maintained user privacy by extracting only conversation summaries rather than full content. The system identifies topic and intent while avoiding individual-level data exposure.
“Our system doesn’t just de-identify conversations; it only extracts the summary of the conversation, from which we learn the topic and the intent, and maintains full privacy,” Costa-Gomes and Spielman explained.
The 37.5 million conversation sample represents a subset of Copilot’s total usage, though Microsoft did not disclose the full user base or conversation volume.
Implications for AI development
Understanding these AI usage patterns informs feature development, according to Microsoft. The company noted that recognising what matters most to users—health, creativity, and support during key moments—enables designing features that fit naturally into daily life.
“It’s also clear from these uses that what Copilot says matters. They show why it’s so important that we hold ourselves to a high bar for quality,” the researchers wrote.
The findings complement recent broader industry analysis of AI usage patterns, including OpenRouter’s report showing Chinese AI models gaining global adoption through cost efficiency and performance improvements. Microsoft’s temporal focus adds behavioural depth to understanding how AI assistants integrate into human routines.
The research arrives as Microsoft expands its AI infrastructure, with the company’s next-generation GB200 cluster now operational at MAI.
These usage patterns suggest AI assistants are evolving beyond tools into companions that adapt to human rhythms—answering practical questions during daylight hours while entertaining philosophical musings when users can’t sleep.
See also: Microsoft ‘Promptions’ fix AI prompts failing to deliver
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