Some great reading about timekeeping in the Industrial Revolution. Here are some examples:
The Clocks are Telling Lies by Scott Alan Johnston. Centers around the International Meridian Conference. Talks a lot about the distinction between scientific professionals’ and amateurs’ perception of timekeeping.
Time, Work-Discipline, and Industrial Capitalism by E. P. Thompson. Discusses the transition from natural time to using clocks to regulate labor.
Greenwich Time and the Longitude by Derek Howse. Recommended by Bjorn Kartomten.