'Not Enough Time' Is Not a Personal Problem — The Structure of Time Poverty Produced by a 5.5-fold Gender Gap in Unpaid Labor
One in four mothers with preschool-age children who are also employed falls into 'time poverty.' Japanese women spend 5.5 times more hours on unpaid labor than men — the largest gap among OECD comparison countries. Using the activities of NPO Soluna as a lens, this article examines the structural mechanisms of time poverty and the cascade of social issues it generates.
What Is Happening
In February 2026, seven university students gathered at a housework workshop held in Tokyo. The event was organized by NPO Soluna. At the opening of the session, representative Yoko Iwase introduced participants to a single concept.
"Time poverty" — a condition in which individuals are unable to secure even one hour of leisure for themselves on weekdays or three hours on weekends, leaving them physically and mentally exhausted.
The data are unambiguous. According to 2020 data from the OECD, Japanese women spend 224 minutes per day on unpaid labor (housework, childcare, and caregiving). Men spend 41 minutes. The 5.5-fold gap is the largest among all comparison countries. Set against Sweden's ratio of 1.4 and the United States' 2.2, Japan's outlier status is stark.
Furthermore, the Statistics Bureau of Japan's Survey on Time Use and Leisure Activities (2021) found that in dual-income households with children under six, wives spend 7 hours 28 minutes per day on household-related tasks, compared to 1 hour 54 minutes for husbands. Despite the label "dual income," the distribution of unpaid labor is far from equal.
What makes this situation categorically different from mere "busyness" is that it arises not from individual choices, but from structural conditions.
Background and Context
What Is Time Poverty?
The concept of "time poverty" was introduced by Clair Vickery in 1977 in the Journal of Human Resources. It refers to a condition in which, after subtracting time required for necessary activities (approximately 10.2 hours per day for sleep, meals, and personal care) and paid work, little or no discretionary leisure time remains. Bardasi & Wodon (2010) defined the threshold as a total working time (paid plus unpaid) exceeding 1.5 times the median — roughly 70.5 hours per week or more.
In Japan, empirical research by Kunio Urakawa (Kyushu University), presented at a JILPT forum in 2024, offers a comprehensive analysis. Urakawa adopted the standard of securing at least one hour of leisure on weekdays and three hours on weekends, and systematically identified the extent of time poverty among Japan's working-age population by household type.
The results are striking. Among single-parent households in regular employment, 42.2% meet the definition of time poverty. In dual-income households where the youngest child is under six, the time poverty rate among wives stands at 25.1%, compared to 8.4% among husbands. Within the same household, a threefold gap exists.
Why Does the Gap Not Narrow?
The gender gap in time poverty is deeply intertwined with the structure of Japan's labor market.
First, the extraordinary length of men's paid working hours. According to OECD statistics, Japanese men work 452 minutes per day in paid employment — the longest among comparison countries. This functions as a physical barrier: men who may wish to participate in domestic life are structurally prevented from doing so. Without curbing long working hours, any equalization of housework distribution is impossible.
Second, the entrenchment of women in non-regular employment. The non-regular employment rate among women stands at 54.4% (compared to 22.2% among men). Choices such as "working part-time because of household responsibilities" or "reducing hours while children are small" may appear voluntary but are structurally compelled — the product of inadequate childcare and eldercare infrastructure combined with a regular employment system premised on long working hours.
Third, the slow development of outsourced housework services. A survey by Nomura Research Institute (2022) found that only approximately 6% of households in Japan had ever used a housework service, with regular use even lower. Deeply rooted norms — resistance to allowing outsiders into the home, the belief that housework should be handled by family members — persist widely.
Fixed gender division of labor
"Men work, women do housework" norm
Men: Long paid work
452 min/day (OECD longest)
Women: Unpaid work burden
224 min/day (5.5x men)
Time Poverty
Cannot secure even 1h weekday / 3h weekend leisure
Locked in non-regular work
54.4% women non-regular
Lifetime earnings gap
~¥100M gap regular vs non-regular
Mental health decline
Sleep loss, exercise deficit
The Cascade of Social Consequences
Time poverty is not merely a problem in itself; it functions as an amplifier that compounds multiple social issues in sequence.
Lifetime income gap: Estimates by the Cabinet Office and JILPT, based on the Ministry of Health, Labour and Welfare's Basic Survey on Wage Structure, show that the lifetime earnings gap between regular and non-regular employment can reach approximately 100 million yen for university-educated women. This is not a matter of individual effort; it is the structural consequence of an unequal distribution of domestic labor.
The double poverty of single-parent households: The relative poverty rate of single-parent households is 44.5% (Ministry of Health, Labour and Welfare, Comprehensive Survey of Living Conditions, 2022). Urakawa's research shows that the number of working hours required to escape income poverty reaches 61.1 hours per week. Attempting to avoid income poverty leads to time poverty; attempting to avoid time poverty leads to income poverty. This double poverty dilemma places single parents in an impossible position.
Declining birth rate: International comparative research shows that countries where men spend more time on housework and childcare tend to have higher fertility rates. Behind Japan's total fertility rate dropping to 1.15 (2024) lies a rational forecast: having children means women's time will be taken from them.
Mental health: Time poverty is significantly associated with reduced sleep, loss of exercise habits, and deteriorating mental health (JILPT 2024). The psychological damage of having no time for oneself is no less serious than the damage of economic poverty.
NPO Soluna's Approach: "Redefining Housework"
The work of NPO Soluna (established 2022, representative: Yoko Iwase) represents one practical response to this structure. The organization's name is a portmanteau of the Latin words "SOL (sun = male)" and "LUNA (moon = female)," expressing an aspiration toward a society that supports the home regardless of gender.
Soluna's approach operates on two levels.
Practical support: Reducing the burden on households through housework services (¥3,000/hour, with a childcare support discount). Currently active in Tokyo's 23 wards and central Nagoya.
Awareness and education: Fostering attitudinal change through housework workshops for university students. At the February 2026 workshop — attended by seven students from Mejiro University, Waseda University, Tamagawa University, Kokugakuin University, Chiba Institute of Technology, and Komazawa University — cleaning principles were taught from the perspective of "housework is chemistry," and in a cooking session, planning ability and time management were framed as core professional competencies.
In the workshop, Iwase advocates for "maintaining 75-point cleanliness." Rather than perfectionism, the aim is to sustain a manageable standard — and she teaches that "the habit of tidying the entryway mirror and toilet is training in becoming someone who can notice the labor and effort of others." This is not merely instruction in household technique; it is practice in imagining invisible labor.
One participating student reflected:
"I realized I had been stealing my mother's time for my own sake. I want to work with my family to reduce time poverty."
In a test that made visible the "thoughtfulness hidden in nameless household tasks," not a single student was able to identify seven or more acts of consideration — such as straightening shoes at the entryway or wiping water splashes from the washroom sink. Because these acts are invisible, they go unrecognized; because they go unrecognized, they concentrate in particular individuals. The invisibility of unpaid labor is the most effective mechanism for perpetuating inequality.
Reading the Structure
The Distribution Problem of an Invisible Resource: "Time"
Income inequality is measured in statistics and addressed by policy. But "time inequality" has long gone unrecognized as a social problem. Nearly fifty years have passed since Vickery proposed the concept of time poverty in 1977, yet full-scale empirical research in Japan only began in the 2020s.
Behind this delay lies a deep-seated perception that "housework is not work" and "childcare is an expression of love, not labor." As long as unpaid labor is not rendered visible as "labor," the time devoted to it will likewise not be recognized as a form of "poverty."
Yet when the structure is disaggregated, time poverty is clearly a distributive problem. Every person has exactly 24 hours in a day. The allocation of paid work, unpaid work, and necessary activities is determined — prior to any individual choice — by the structure of the labor market, the design of social security systems, and cultural norms.
Men's long paid working hours and women's excessive unpaid labor are two sides of the same structural coin. One cannot be corrected without addressing the other. Appeals to "get more women working" or "have men do more housework" remain empty slogans without labor-time regulation and investment in childcare infrastructure.
The Direction Suggested by Soluna's Questions
What NPO Soluna's activities suggest is that structural reform and individual attitudinal change are not mutually exclusive — both must advance simultaneously.
Even if institutions change, paternity leave uptake rates will not improve unless the norm that "housework is women's domain" also changes (30.1% in fiscal 2023 according to the Ministry of Health, Labour and Welfare's Basic Survey on Equal Employment, though the duration of leave taken remains skewed toward very short periods). Conversely, even if individual attitudes change, participation in family life is physically impossible as long as the structure that imposes 452 minutes of paid work per day does not change.
That Soluna's workshops target university students reflects a strategic choice: making "invisible labor" visible before young people become embedded in the structure. The declaration of one student — "I want to move from being someone who is supported to being someone who supports those around me" — can be read as an act of self-determination made with full awareness of the structure of time poverty.
What is needed to resolve time poverty is not "how to do housework more efficiently." It is a structural understanding of how, for whom, and why the resource of time is distributed unequally — and the transformation of those very rules of distribution.
Related Articles
- The Wound of "Attachment" Pervading Japanese Society — The Structural Problem Produced by Patriarchy, Nuclear Familization, and Intergenerational Transmission
- The Structural Background of the "870,000-Worker Shortage" in Nursing Care — The Policy Discontinuities Visible Behind the Numbers
- People Who Fall Through the Gaps in Policy — A Structural Analysis of "Institutional Exclusion"
References
就労世代の生活時間の貧困
浦川邦夫. JILPT フォーラム
Read source
就労世代の生活時間の貧困に関する考察
石井加代子・浦川邦夫. 社会政策学会誌
Read source
Working Long to Stay Poor: The Relationship Between Work Time and Poverty
Bardasi, E. & Wodon, Q.. Feminist Economics
Read source
The Time-Poor: A New Look at Poverty
Vickery, C.. Journal of Human Resources
Read source
令和3年社会生活基本調査
総務省統計局. 総務省
Read source
男女共同参画白書 令和5年版
内閣府. 内閣府
Read source
2022年 国民生活基礎調査
厚生労働省. 厚生労働省
Read source
OECD Gender Data Portal: Unpaid Work
OECD. OECD
Read source
