The technology of measuring, standardizing, and organizing time — from the first astronomical calendars of ancient Mesopotamia through the mechanical clock's transformation of medieval Europe to the atomic clock's precision that enables GPS and global finance — a technology so fundamental to modern civilization that its absence is unimaginable, and whose history reveals how deeply the organization of time is bound up with the organization of power.
Before the railway, every town in England kept its own time, set by the position of the sun. When trains began running between cities in the 1840s, this became a scheduling catastrophe — a train leaving London at 9:00 'London time' arrived in Bristol when it was still 8:50 there. The solution was 'railway time': a single standardized time for the entire rail network, eventually imposed on the entire country. The clock on the church tower, which had told local communities what time it was for centuries, was replaced by a time set in London and transmitted by telegraph. This is a small story about something large: how the need to coordinate activity at scale forces the standardization of time — and how that standardization concentrates power over everyone who lives within it.