Every day, around eight billion human beings wake up and go through life by performing a multitude of activities. Some spend hours at work, others take care of their children, cook, entertain themselves, or set aside time for themselves. But if we merged all these experiences into a single average day, what would it look like? A team of researchers from McGill University set out to answer this question by compiling data from 145 countries. Their analysis, published in 2023 in the Proceedings of the National Academy of Sciences, offers a fascinating and unprecedented view of how humanity uses its time.
Time, a Universal Resource but Unequally Distributed
The study reveals that an average human spends about 9.1 hours per day sleeping or resting. This figure may seem high for an active adult, but it includes the sleep needs of infants, children, and the elderly.
Once awake, the typical individual devotes 4.6 hours to leisure and social interactions. This time encompasses activities such as watching television, playing, reading, pursuing artistic activities, meeting friends, or simply doing nothing.
Meals and their preparation occupy an average of 2.5 hours per day, while personal hygiene (washing, dressing, grooming) takes about 1.1 hours. Household maintenance, including cleaning and upkeep of living spaces, requires on average 0.8 hours per day.
Work, often perceived as a dominant activity, actually accounts for only 2.6 hours per day on average. This duration, far shorter than a traditional workday, is explained by the fact that many people do not work (children, retirees, homemakers, unemployed), which dilutes the global average. Similarly, education—primarily affecting younger generations—accounts for only 1.1 hours per day across the world’s population.
Finally, a striking observation concerns essential productive activities such as construction, goods manufacturing, and resource extraction. These tasks occupy only 0.8 hours per day on average, meaning that the building of human infrastructure—roads, houses, everyday objects—uses merely 3% of global collective time.
Disparities Between Rich and Poor Countries
If these figures reflect a global average, they mask substantial differences across regions of the world.
In high‑income countries, individuals spend about 1.5 hours more each day on leisure, meals, and physical activity than those living in poorer countries. Conversely, in the most disadvantaged regions, a much larger share of time is devoted to fundamental tasks, such as farming and harvesting food. While in wealthy countries a person spends on average only 5 minutes per day producing their food, this activity takes more than an hour daily in the poorest countries.
However, certain habits cross borders. Everywhere on the planet, we devote relatively similar amounts of time to food, travel, hygiene, and washing.
Why is this Study Important?
This work marks the first major publication of the Human Chronome Project, an initiative aimed at assembling a global database on the organization of human time. By understanding how we collectively distribute our time, researchers hope we can better manage this precious resource and consider ways to optimize our way of life.
Behind these statistics, a fundamental question arises: are we using our time in the best possible way? The distribution of hours of the “global human day” offers a fascinating snapshot of our civilization and its priorities. At a time when the world faces major challenges—climate warming, automation of labor, artificial intelligence—this study could help us make more informed decisions about how we want to use our time, both as individuals and as a species.
After all, time is the only truly universal resource. It is up to each individual to decide how to spend it.
