The Battle for the Working Day — Das Kapital

Measurement is not enough; the length of the working day is fought over in courts, factories, and streets. Marx opens by stating a tension: capital has an drive to prolong labour, while the worker's body sets a physical maximum. Between those limits, class struggle decides what counts as normal.

The chapter surveys greed for surplus-labour from manufacture to agriculture, including the relay system and child labour that stretched days across shifts. Reformers and workers push back through Factory Acts and collective resistance, yet capital constantly probes for loopholes. Marx notes that between equal rights, force decides when the law itself is ambiguous.

He closes with capital depicted as dead labour vampirically feeding on living labour, and with the working class learning that legal gains must be defended in practice. The normal working day is not a technical constant but a historical settlement renewed by conflict.

Factory laws appear as limits on greed, but Marx reads them as evidence that unrestricted extension of the day threatened the reproduction of labour-power itself, forcing the state to protect the commodity it needed.