Time Banking — Edgar Cahn's Hour-for-Hour Exchange

Background & Cultural Context

Time banking is a community-currency system in which one hour of any member's labor is valued as one Time Dollar, regardless of the market value of the work. The system was developed in the 1980s by Edgar Cahn (1935-2022), an American civil-rights lawyer and law professor who designed the framework partly in response to the Reagan-era contraction of government social services. Cahn's foundational text is his 1992 book Time Dollars: The New Currency that Enables Americans to Turn Their Hidden Resource — Time — into Personal Security and Community Renewal, co-authored with Jonathan Rowe.

The mechanics are simple. Members of a time bank earn one Time Dollar for each hour they spend providing a service to another member. Time Dollars can be spent on services from any other member or saved for future use. A typical time bank coordinator (the time broker) matches requests with offerings, maintains the member-hours database, and resolves disputes. The radical move is the equal-value axiom: an hour of childcare equals an hour of tax preparation equals an hour of yard work equals an hour of guitar lessons. No service is worth more than any other in Time Dollar terms.

The equal-value axiom is the design choice that distinguishes time banking from barter, local currency, or mutual credit. It deliberately rejects market valuation of labor, which consistently devalues care work (childcare, eldercare, home health), low-status manual work, and other forms of labor that the market underprices. By treating every hour as equal, the time bank creates economic recognition for kinds of work that the cash economy systematically dismisses. Cahn called this co-production: members are not just consumers of services but producers, with their hours treated as a real economic input.

Time banks have been organized in dozens of US cities, in Britain (where the practice is particularly well-developed with several hundred active banks), in Spain (where they are called bancos de tiempo and have spread rapidly since the 2008 financial crisis), in Japan, in New Zealand, and increasingly in Continental Europe. The total number of active time banks worldwide is estimated at several thousand; total annual hours exchanged are in the tens of millions, though precise figures are hard to compile because many banks operate locally without central reporting.

Time banks have been particularly effective at engaging populations the market economy marginalizes — elderly people whose skills are devalued by ageism, immigrants whose credentials are not recognized, people with disabilities whose work pace doesn't match wage-labor expectations. By treating their labor as equivalent to anyone else's, the time bank creates a path to social inclusion and self-respect that direct charity does not. Several documented health outcomes have improved significantly for time-bank members in elderly populations, with reduced isolation as the most consistent finding.

Modern Application

Starting a time bank requires a coordinator (initially part-time, often volunteer), a platform (most operate on hOurworld or TimeBanks.org, the two main software platforms), and a recruitment effort to build initial membership. A viable time bank needs at least fifty members within commuting distance to provide enough service variety; the most successful banks have several hundred members. The first six months are usually spent recruiting members, holding introduction sessions, and matching the first exchanges; activity volume tends to grow exponentially in the second and third year as members come to trust the system.

Common service categories: transportation (rides to medical appointments are the most-requested service in many banks), home maintenance (small repairs, painting, yard work), childcare and eldercare, tutoring and teaching, professional services (writing help, tax preparation, legal advice), and personal-care services (haircuts, basic physical therapy). Services that involve professional licensing must comply with applicable regulations — a time bank cannot be used to bypass medical licensing or legal-practice rules.

Funding for time bank operations is a recurring challenge. Most banks operate on a shoestring with volunteer coordinators; scaling beyond a few hundred members usually requires part-time paid coordination. Funding sources include municipal grants (several US cities provide explicit support), foundation grants (particularly from health-and-aging-focused funders), and member dues (typically a small annual fee in addition to the hours exchanged). The most successful long-running banks have hybrid funding models that combine multiple sources.

Honest limits: time banking works for some kinds of needs and not others. It is excellent at delivering moderate-skill casual labor and at building social connections among members. It is poor at delivering high-cost specialized services (major medical care, large construction projects, anything requiring expensive equipment). It does not pay rent, utility bills, or other cash obligations. Members still need cash income for the bulk of their household needs; time banking supplements rather than replaces the cash economy. The social benefit — reduced isolation, increased connection, recognition for previously invisible work — is often the primary value, with the labor exchange itself secondary.