--- title: Scientists Have Pinpointed the Most Productive Time of the Day, and it’s Not the Crack of Dawn description: 'Hint: It has nothing to do with your morning cup of coffee.' authors: - name: Mallika Mitra role: Contributing Editor url: https://money.com/author/mallika-mitra/ bio: Mallika Mitra is a contributing editor for Money, based in Chicago. She has covered investing and retirement for seven years and her work has appeared in CNBC, Bloomberg, Kiplinger, AARP, Barron’s, Bankrate, The Daily Upside, ETF.com, The Bond Buyer, PLANADVISER, PLANSPONSOR and Investopedia. education: Craig Newmark Graduate School of Journalism at CUNY Kalamazoo College at_money_since: 2020 articles: 395 covers: - Career Advice - Banking - Business - Credit - Credit Cards - Debt - Economy and Politics - Education - Health and Wellness - Housing - Identity Theft - Insurance - Investing - Lifestyle - Loans - Mortgages - Personal Finance - Pets - Professional Services - Retirement - Shopping - Taxes - Technology also_seen_in: - CNBC - Bloomberg - Kiplinger - Barron's - Bankrate - WGN-TV - CBS News Radio - This Morning With Gordon Deal - Everyone's Talkin' Money social: - https://twitter.com/mitra_mallika - https://www.linkedin.com/in/mallika-mitra-4577a386/ published: '2020-09-18T15:58:22.000Z' modified: '2024-05-17T04:39:53.000Z' section: Career Advice tags: - according to a new study - Apex4252 - Guides - how to be productive - life hacks - productivity - Research - study - WFH - work from home word_count: 827 canonical: https://money.com/most-productive-time-of-day/ type: Article source: structured-blocks --- > **Disclosure:** We research all brands listed and may earn a fee from our partners. Research and financial considerations may influence how brands are displayed. Not all brands are included. [Learn more](https://money.com/page/disclaimer/). ![Productivity-time-scientist](https://img.money.com/2020/09/producitivity.jpg) You've probably come across all sorts of tips for "maximizing productivity" while working from home. From going on midday walks to actually eating breakfast for a change, there's no shortage of advice for how to make the most out of your workday. But according to a new study, being productive isn't so much about *what* you're doing as *when* you're doing it. Researchers from Monash University in Australia and the University of Granada in Spain set out to pinpoint the exact time of day we're most efficient when performing cognitive tasks — everything from paying attention during meetings to interpreting complex data. The sweet spot for performance? Right around lunchtime. The study, which was published in a new [working paper](http://ftp.iza.org/dp13657.pdf) by the IZA Institute of Labor Economics, a nonprofit research institute based in Germany, analyzed half a million exams taken by university students in the United Kingdom at three distinct times of day: 9:00 a.m., 1:30 p.m., and 4:30 p.m. Based on five years of exam scores, and an average of six exams per student, the researchers found that "peak performance" happens during that 1:30 p.m. slot. There's some wiggle room, obviously. Maybe you're too "hangry" at lunchtime to even think about work, or tend to get your best work done right after that first cup of coffee hits at 9 a.m. But the nature of the study — it's large sample size and the fact that the exam times were randomly-selected — isolated the effect of cognitive functioning on productivity from these other types of behavioral responses, says Denni Tommasi, an assistant professor of economics at Monash University and an author of the paper. “I can drink as much coffee as I want or I can eat as much chocolate as I want to try to adapt,” Tommasi says. But in the end, our brains decide when we're naturally the most productive. And for many people, that's in the early afternoon. So what exactly is a “cognitive task,” and how often do you perform one throughout the day? All the time, most likely. These are any activities that require you to retrieve information from memory or process new information. While school tests are one way to flex your cognitive skills, many professionals do cognitive tasks as well, like doctors performing surgery. Or — and these likely hit closer to home for many of us — making a tough business decision, and contributing to a brainstorming meeting. Now onto what makes early afternoon — the time you might want a [mid-afternoon nap](https://money.com/afternoon-work-naps/) — the prime time to get these tasks done. It all has to do with our circadian rhythm, or the internal, 24-hour biological clock that helps our body anticipate when the sun will be up (signaling our brains to be active) or when it will be down (telling our brains to go to sleep), says Kristen Knutson, an associate professor of neurology at Northwestern University who consulted on the study. “We can’t be ready to run a race 24/7,” Knutson says. “There are times when our body needs to be resting and there are times when we need to be awake and active.” The timing of our internal clock changes as we age (remember staying up until 2 a.m. as a teenager?). So while the sweet spot for young adults is early afternoon, the prime productivity window shifts earlier as we get older. Our genetics and social environments can also impact our internal rhythm. If your friends are all night owls, for example, you might adjust to staying up late. Or if your job requires you to be up at the crack of dawn, you might find yourself becoming a morning person. Tommasi and his co-author Alessio Gaggero, a research fellow at the University of Granada, also found that the time-of-day effects varied seasonally. Moving an exam from the morning to lunchtime in January increases a student's performance twice as much as making that move in June. There's less sunlight in January, so the circadian clock starts later, meaning the brain starts working "better" later. The effects were also stronger for tasks that use what experts call "fluid intelligence," which involves activities like problem-solving and logical thinking versus "crystallized intelligence," like knowledge and vocabulary. So these time-of-day effects were stronger for STEM (science, technology, engineering, and mathematics) students than they were for non-STEM students. At this point you might be wondering how to cram your entire to-do list into tomorrow’s early afternoon. Sorry: We’re not giving you an excuse to shorten your 9 to 5 day from noon to 2. The researchers’ advice? Pick the one most important task you have to do and complete it before lunchtime. Waking Up at 5 a.m. Probably Won't Make You More Productive. 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