Tapping into Your Team’s Circadian Rhythms

We all have internal clocks that govern fluctuations in our energy, focus, and emotions throughout the day. Maybe you’re a “lark,” a person who is most alert and capable in the morning, or perhaps you’re a “night owl,” whose best work happens after dark. Some people shine in the afternoon—what several sleep researchers recently dubbed the “vulnerable lark” or “intermediate finch.” Circadian rhythms are not habits or preferences that you can train yourself to change. They are biological dispositions that remain remarkably stable over time. Most leaders have a sense of how their body clock drives their physical and cognitive performance as well as their natural sleep-wake cycles (what sleep scientists call chronotypes). However, as a researcher and corporate consultant, I’ve found that few executives map out their own workdays accordingly—and even fewer recognize and plan around their team members’ natural rhythms. In an age when technology has made remote work and flexible scheduling easier than ever, that is a missed opportunity. Studies (including my own) show that professionals who consider their own and team members’ body clocks can reap numerous benefits, such as increased creativity, higher-quality decisions, and enhanced leadership charisma, while avoiding misjudgments, mistakes, and burnout. Research also reveals the real costs of ignoring your body clock and consistently working at suboptimal times, among them weaker idea generation and ethics and increased risk-taking. Consider an operating room manager who assembles a surgical team of people who have different biological rhythms—a surgeon who peaks in the morning, an anesthesiologist who doesn’t hit stride until midday, and a scrub nurse who thrives in the evening. The result is a group that’s never fully in sync and unlikely to perform at its best. Similarly, if a flight crew scheduling manager assigns to a long-haul flight a captain, a first officer, and a relief pilot who all reach peak alertness at the same time, the team may be highly effective during the first few hours but fatigued and less reliable during the second half, when vigilance is equally critical. The most common circadian-related bias in offices is toward “morningness,” equating early-day energy with commitment, competence, and leadership potential. That assumption is deeply embedded in workplace culture and amplified by social norms. Nowhere is this more visible than on social media, where the popular “5–9 before 9–5” trend celebrates predawn exercise, self-improvement, and productivity as markers of discipline and success. That bias quietly shapes everyday managerial judgments. Consider Steve, a team leader in a midsize consulting firm who feels most effective before noon and can’t understand why Lisa, one of his strongest analysts and (unbeknownst to him) an evening type, never seems fully engaged at their 9 AM meetings. Meanwhile, Lisa bristles when Steve’s waning afternoon energy makes him terse and he doesn’t answer important evening emails until the following day. In this case and the others mentioned earlier, the problem isn’t competence or commitment. It’s timing—and the assumption that leaders aren’t responsible for actively considering team members’ disparate rhythms. Planning Around Your Own Clock Circadian-informed leadership starts with self-awareness. Executives who understand their own daily rhythms are better able to decide when to lean in and when to pull back. Tasks that require strategic thinking, emotional sensitivity, or complex judgment calls are best handled during peak periods. For example, if you are a team leader at a tech company, you should plan sprint cycles—which involve breaking down project milestones, balancing workloads fairly, and anticipating bottlenecks—first thing in the morning if you are a lark or in the late afternoon or evening if you are a night owl. Doing critical work during circadian lows increases the risk of misjudging priorities or overlooking interpersonal dynamics that can later derail execution. Timing also matters with performance reviews and frank conversations, which often involve sensitive topics. You should schedule those meetings for when you have the most focus and energy. If they occur during off-peak times, when you’re mentally fatigued and emotionally flat, you are more likely to avoid difficult points, misread cues, and fall back on vague generalities than to give actionable, nuanced advice. The same is true for conflict resolution. Whether you’re addressing tensions between team members or trying to resolve a disagreement over a decision, you must remain neutral, manage your own feelings, and guide the team toward a constructive outcome. During circadian ebbs, those capacities erode quickly. Some of the most taxing leadership work is even subtler—for example, when you must stretch beyond your natural personality style to support others. Perhaps you’re a reserved person who needs to express encouragement after a team setback, or you’re a decisive manager who wants to create space for quieter teammates to take the lead during a brainstorming session. Those psychologically dissonant shifts require effort and are far easier to handle when your cognitive and emotional energy is high. Eynon Jones During people’s circadian ebbs, decision-making slows down, self-regulation requires more effort, and missteps become more likely. Low-energy periods are an ideal time to delegate certain responsibilities to others and to shift into an advisory role rather than supervising every detail yourself. For example, as a product team lead you might hand off sprint planning to a senior developer while remaining available for light-touch guidance. Such shifts are a win-win for your team. Employees appreciate the increased autonomy, and you conserve the energy you need for tasks that truly require your involvement. When your energy is low, you can also temporarily dial back the emotional labor of managing by being more thoughtful about how you engage with team members. For some leaders, reducing social interactions and maintaining a professional distance provides an opportunity to recharge; for others, casual, low-pressure interactions—like an informal check-in, coffee chat, or lunch—offer a welcome break from task-focused work. One simple but powerful way leaders can manage their energy fluctuations is to be less available during their peak windows. Johannes Thomas, the CEO of the travel website Trivago, for example, keeps his mornings largely meeting-free—protecting those hours for deep, cognitively demanding work—and schedules meetings and interactions with team members for later in the day. The lesson for leaders is not “work more” but “place the work better.” Guard your highest-energy periods for judgment-heavy decisions and relationship-sensitive conversations, and do routine tasks when you’re naturally less sharp. Mapping Work to Employees’ Rhythms In addition to navigating your own circadian rhythms, you can deliberately shape how energy flows and work unfolds across teams by paying attention to each team member’s circadian preference. Simple and free tools—such as the Morningness-Eveningness Questionnaire and the Munich ChronoType Questionnaire—can help leaders and teams identify when employees are naturally most alert and effective. Used thoughtfully, those assessments reveal where energy levels align and where they diverge, helping leaders decide when to schedule demanding discussions, assign complex tasks, and hand off less demanding work. Shared peak periods, when collaboration is smoother and more productive, are the best times for high-stakes teamwork. In the 20th century 9 AM to 5 PM might have been a workable compromise schedule, but in the digitally enabled 2020s, that window can easily be compressed to 10 AM to 2 PM or 11 AM to 3 PM. When peaks don’t align, real-time coordination is trickier, but it’s still possible to maintain progress and strong performance asynchronously if you artfully leverage those mismatches by assigning responsibilities across longer or more-demanding work cycles. Take an engineering manager tasked with overseeing a complex overnight systems migration, moving internal databases and infrastructure to a new cloud platform. To do this successfully, he needs support from a software engineer. If the core migration phase lasts just a few hours but requires precise timing, active troubleshooting, and real-time coordination, it would be best if he chose someone with the same circadian rhythm and scheduled the migration during their shared peak period (for example, 4 PM to 8 PM). By contrast, if the task involves a 24-hour monitoring window post-migration—during which any system outage must be caught and corrected immediately—he should pick someone with a different circadian rhythm so that when his alertness dips, the other person can pick up the responsibility, enabling the pair to maintain round-the-clock responsiveness and cover for each other. When you’re tuned into your employees’ internal clocks, you can also make smarter decisions about who takes on demanding work and when. At peak times, people are not just more alert and resilient. They are also better at tolerating pressure, tackling unfamiliar tasks, and recovering quickly from setbacks. Those windows are perfect for assigning challenging and developmental work. In a finance team, for example, that could mean asking a senior analyst to lead a complex valuation, stress-test a forecast, or prepare recommendations for an investment decision during her peak hours, both to maximize quality and to develop her leadership capacity. In a marketing group, it could mean inviting a team member to independently lead a creative review session or manage an external partner conversation during his peak period. The reverse matters just as much. Avoid assigning high-stakes or complex tasks during people’s circadian ebbs and instead steer them toward routine or low-pressure responsibilities. Good leadership requires a degree of grace. Rather than expecting constant availability or peak engagement, you should become more attuned to the conditions under which people do their best work. You are less likely to confuse low energy with low commitment or to mistake early-morning fluency for superior ability. By understanding and respecting when your team members are most and least able to perform during the day, you can grant them more autonomy, assign work more intelligently, stretch people at the right time, and protect their performance and well-being. The result is a team that’s not just productive but sustainably high-performing. For example, Boston Consulting Group’s Predictable Time Off initiative allowed leaders to redesign how work flowed—introducing protected time off, clearer handoffs, and tighter norms around what truly required immediate attention—rather than asking individuals to simply cope better. Performance improved not because people worked less but because leaders began to engineer the work around employees’ energy levels and recovery periods. In effect, responsibilities were assigned across various people and time periods instead of being distributed to whomever happened to be available. The result: higher efficiency, greater client satisfaction, and stronger retention—demonstrating that when leaders map work to human rhythms, both performance and well-being improve. When Flexibility Isn’t Possible Of course, not all work can be neatly aligned with people’s biology. Urgent demands sometimes require leaders and their teams to do high-stakes work outside their natural peak windows. Most people can manage those situations in the short term by expending more cognitive and emotional effort to stay sharp, knowing that decision quality, attention to detail, and self-regulation will otherwise suffer. Leaders should treat those types of situations like “high-risk operating modes”: Focus only on the few decisions that truly need real-time judgment, use checklists and premortems to reduce slips, and add a second set of eyes for anything irreversible (such as a pricing change, a final slide deck, or a go/no-go call). Imagine a cross-border deal team that gets surprise questions from regulators at 8 PM that must be responded to by 7 PM. Leaders can’t run the entire team flat-out all night. Instead they should assign the time-sensitive drafting and fact-checking, including a midnight quality assessment to spot errors and evaluate tone, to two night owls. Those employees can then write a short handoff memo for the larks, who can step in fresh at 5:30 PM to finalize the response to the deal, run the numbers one last time, and catch any inconsistencies before submission. No heroics required—just smarter sequencing, redundancy, and handoffs across employees’ biological peaks. When circadian misalignment is the norm—as it often is in global consulting, investment banking, and crisis management—the cumulative toll is dire: chronic strain, faster burnout, and a gradual erosion of performance capacity. In such contexts leaders must recognize that recovery isn’t a perk; it’s a strategic imperative. They need to schedule more-frequent and longer breaks, offer greater flexibility in work hours when possible, and rotate people out of high-demand roles before fatigue limits performance. For example, instead of having the same “always on” individuals handle every late-night client escalation, a consulting partner can create a rotation so that work assignments are deliberately made with employees’ circadian rhythms in mind: Workers in a designated evening-response pod would be allowed to have a later workday start time, and those in a morning-response pod would pick up assignments early. A clear handoff protocol would ensure that the burden doesn’t fall on the same conscientious high performers. Citigroup’s leaders implemented this kind of model for securities trade settlements across regions, ensuring that work could continue around the clock with all the teams and individuals contributing at their peak periods. That change led to fewer mistakes, faster turnaround times, and reduced burnout. The goal is not to eliminate intensity but to prevent chronic circadian misalignment from becoming the default way of working. In intense industries and during demanding times, leaders must stay acutely aware of how often they ask people to operate at their best outside their circadian peak periods and how deliberately they encourage recovery. Younger professionals in particular want to work for teams that protect their well-being; they don’t view burnout as a badge of honor. Leaders who learn how to make high performance sustainable will attract and retain top talent. . . . Circadian-informed leadership does not require new policies, systems, or sweeping organizational changes. In practice, it shows up in small, often unremarkable choices: when you schedule a critical conversation, how you sequence demanding tasks, or how you interpret fluctuations in performance across the day. Over time those shifts can dramatically improve the way your team operates and how employees feel about what they do. Work is a series of well-timed demands rather than a test of endurance. Engagement increases. Success is easier to achieve and sustain. As flexible work becomes a permanent feature of organizational life, managing this way is becoming easier than ever. The issue is no longer merely allowing variation in schedules but coordinating tasks to capitalize on varying circadian rhythms and maximize the potential of you and your team.

Tapping into Your Team’s Circadian Rhythms

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