Most executives believe they are spending their time strategically. The research says otherwise.
A Harvard Business Review study tracked 27 CEOs across nearly 65,000 hours of work over three months, logging every activity in quarter-hour intervals. Most CEO time goes to meetings, not decisions. Most of those meetings were scheduled by other people. And even at the top of the corporate hierarchy, executives spend a lot of energy fighting to hold onto the hours that actually matter.
This piece pulls together time-use data from the HBR CEO study, McKinsey productivity research, and calendar analysis surveys to show where CEO hours go, and what shifts when delegation and executive support change that picture.
For context on the support structures that give CEOs more usable hours, see our guides to executive assistant services and executive assistant support.
The baseline: how many hours do CEOs actually work?
The Porter and Nohria HBR study (2018), the most rigorous CEO time-use study published to date, found that CEOs in their sample worked an average of 9.7 hours per weekday, 3.9 hours on weekend days, and 2.4 hours on vacation days, totaling roughly 62.5 hours per week.
A 2023 Korn Ferry study of Fortune 500 executives put senior leader averages at 58-65 hours, with C-suite respondents clustering toward the top of that range.
The working week is long, but it is not unlimited. Every hour spent on low-value activity has a real opportunity cost. And even with a 62-hour week, most CEOs report feeling pressed for time, which points to an allocation problem, not a volume problem.
Where CEO time actually goes
Meetings
Face-to-face interaction consumed 61% of working time for CEOs in the HBR study. That covers one-on-ones, small group meetings, large group sessions, and ceremonial appearances, but not phone calls, video conferences, or hallway conversations, which were tracked separately.
When you fold in all forms of direct interaction, the figure rises to 72%. Only 28% of CEO time was spent alone, a smaller share than most executives would estimate.
Within meeting time, 37% went to sessions with more than six participants, the large group formats where individual contribution gets diluted and decisions rarely get made. Another 25% went to one-on-ones. The rest went to small group work.
A 2013 McKinsey survey found that senior executives average 23 hours per week in meetings, a figure that had grown substantially over the preceding decade. More recent McKinsey data suggests that number is still moving up.
Most CEO meeting time is coordination and status updates, not strategy. A lot of it, handled differently, would not require the CEO at all.
Strategy: less time than expected
CEOs devoted 21% of their time to strategy in the HBR study, including both planning and strategic review. That number also includes business unit and functional reviews, which organizations often label as strategic but which tend to be operational in practice.
Other allocations from the study: 16% to managing human capital (recruiting, performance reviews, succession, culture), 10% to functional reviews, 9% to financial management, 8% each to external stakeholders and board relations.
The job is nominally about setting direction and allocating resources. The calendar data shows something closer to a coordination function with strategy layered on top.
McKinsey Global Institute research found that knowledge workers spend 28% of their workweek on email. For CEOs with high volumes of external correspondence, it can be more.
Top executives typically receive 100-200 emails per day. Without any filtering structure, that translates to 2-4 hours of daily inbox time competing directly with strategy and relationship work.
The CEOs in the HBR study who reported high satisfaction with their time use tended to share one pattern: they had offloaded communications triage. They reviewed processed correspondence rather than raw inboxes. A filtering layer (whether a human EA, a structured protocol, or both) was consistent across the cases where time use felt manageable.
Travel
The HBR study found that CEOs spent 64% of their time at company headquarters and 36% elsewhere, traveling to facilities, meeting customers and partners, attending industry events, and appearing at external forums.
Travel is where time compression is most visible. A full day of air travel might yield 3-4 hours of productive work while consuming 12-16 hours of calendar. Without structures to make travel time usable (pre-briefed meetings, decision materials ready in advance, communications handled remotely), significant executive capacity simply evaporates.
How CEO time splits by function
| Functional area | Share of CEO time |
|---|---|
| Strategy | 21% |
| Human capital | 16% |
| Organizational structure and processes | 14% |
| Functional reviews | 10% |
| Financial management | 9% |
| Customers and products | 9% |
| External stakeholders | 8% |
| Board and advisors | 8% |
| Culture | 5% |
Source: Porter and Nohria, HBR 2018
The 5% figure for culture is worth sitting with. In surveys of what CEOs say they prioritize, culture routinely ranks near the top. In calendar data, it ranks near the bottom. That gap between stated priority and actual time allocation is one of the more consistent findings in this research area.
Planned versus reactive time
The HBR study found that 61% of CEO work time was planned in advance: scheduled meetings, structured reviews, committed engagements. The remaining 39% was reactive, meaning unplanned conversations, emergent problems, ad hoc requests.
CEOs who reported better outcomes tended to have a higher planned share, not because they eliminated reactive demands, but because they had built structures to contain them. Designated times for walk-in questions. Unplanned requests routed through a triage layer rather than straight to the CEO. Deliberate decisions about what they would and would not engage with personally.
The EA's role in this picture is not just filling a calendar. It is holding the line on that planned-to-reactive ratio so it does not quietly slide.
Delegation patterns
CEOs who delegate effectively tend to run larger and faster-growing organizations. A Gallup analysis using Inc. 500 sales data found that CEOs with high delegation skills generated 33% higher revenue than those who held tighter control over key decisions. The gap was consistent across industries.
A CEO who handles decisions a direct report could make is not just adding to their own workload. They are creating a bottleneck that slows every downstream project or decision that waits on them. The time cost falls twice: on the CEO, and on the organization.
McKinsey research on management effectiveness found that most executives delegate less than they could. In one study, senior leaders who went through coaching to identify decisions they could appropriately push down one level found an average of 6-8 hours per week available for reallocation.
What executive assistants change
The research on EA impact is thinner than the research on CEO time use generally, but it points in a consistent direction.
Industry benchmarking from the American Management Association and EA professional organizations suggests that a skilled executive assistant saves a C-suite executive 8-10 hours per week, primarily through communications management, meeting preparation, travel logistics, and coordination that would otherwise land on the executive.
Annualized, that is 400-500 hours of reclaimed time per year, which exceeds the total working hours of a typical full-time employee.
Where EA support tends to move the needle most:
- Calendar management and meeting prioritization prevent the accumulation of low-value meetings that expand to fill available time
- Communications triage lets the CEO review decisions rather than sort raw input
- Pre-meeting preparation makes sessions decision-oriented rather than informational, which compresses meeting time
- Travel logistics reduce administrative overhead so more of that time is actually usable
- Follow-through tracking ensures decisions made in meetings produce actions rather than becoming inputs to future meetings
CEOs who have invested in executive support tend to describe it as one of the higher-return operational decisions they made. The arithmetic is not complicated: 8 hours per week of reclaimed CEO time, reallocated to work that generates value at CEO-level leverage, compounds quickly.
For more on this model, see our overview of executive assistant services and how executive support scales with organizational complexity.
Key statistics
- CEOs work an average of 62.5 hours per week across weekdays, weekends, and vacations (Porter and Nohria, HBR 2018)
- 72% of CEO work time involves direct interaction with other people: meetings, calls, informal conversations (HBR 2018)
- Only 28% of CEO time is spent alone, including all solo thinking, writing, and analysis (HBR 2018)
- CEOs spend 21% of their time on strategy, less than most estimate (HBR 2018)
- 37% of CEO time goes to meetings with more than 6 participants (HBR 2018)
- Senior executives average 23 hours per week in meetings, a figure that has continued to grow (McKinsey 2013)
- Knowledge workers spend 28% of the workweek on email; for CEOs with high external volume, it tends to be higher (McKinsey Global Institute)
- 39% of CEO work time is reactive, responding to unplanned demands (HBR 2018)
- CEOs with high delegation skills generate 33% higher revenue than low delegators (Gallup / Inc. 500 analysis)
- A skilled EA saves a C-suite executive 8-10 hours per week, primarily through communications and meeting management (AMA benchmarking)
What the data implies
Meeting load is the primary variable. At 61-72% of working time, meetings dominate the CEO schedule. Reducing meeting volume by clarifying which meetings require the CEO versus a delegate, and protecting time for strategic thinking, tends to have the largest effect on how the remaining hours feel.
The planned/reactive ratio matters more than total hours. CEOs who report feeling effective tend to have structures that convert reactive demand into planned interactions. They are not available for every unscheduled conversation, but they have created channels for those conversations to happen on their terms.
Delegation compounds. A decision delegated effectively once trains the organization to bring fewer decisions upward in the future. The upfront cost of building judgment and accountability in direct reports pays off in ongoing time recapture that grows as the organization learns.
The 62-hour week is already fixed. What determines executive effectiveness is how deliberately those hours get allocated.
For more data on how executives use support to reclaim and redirect time, visit our CEO productivity statistics research page.
Sources: Porter, M.E. and Nohria, N. "How CEOs Manage Time." Harvard Business Review, July-August 2018. McKinsey Global Institute. "The Social Economy: Unlocking Value and Productivity Through Social Technologies." 2012. McKinsey & Company. "Bugs in our thinking about management." 2013. Gallup. "Delegating: A Huge Management Challenge for Entrepreneurs." 2015. American Management Association executive productivity benchmarking.