In the 1960s and 1970s it was argued that leisure time would increase at a rapid rate. This prophecy has turned out to be false, and time is now equated with achieving a 'work-life balance' where 'life' is often unpaid childcare and domestic work. This book traces the history of the relationship between work and leisure, from the 'leisure preference' of male workers in the eighteenth century, through the increase in working hours in the later eighteenth and early nineteenth centuries, to their progressive decline from 1830 to 1970. It examines how trade union action was critical in achieving the decline, how class structured the experience of leisure, how male identity was shaped by both work and leisure, and how, in a society that placed high value on work, a 'leisured class' was nevertheless at the apex of political and social power - until it became thought of as 'the idle rich'. Two further tranches of time came to be marked out as properly without work: childhood and retirement. By the mid-twentieth century, married men had achieved a work-leisure balance. This was far from the case for married women. The book shows how their entry into the labour market in the later twentieth century sparked new thinking about work and time, coinciding with a halt to the decline in working hours, and a reversal of the trend in some sectors of the economy. Accessible, wide-ranging and occasionally polemical, this book provides the first history of how we have imagined and used time.