We demonstrate nearly steady trends from 1973-2023 in the U.S. in the timing of when people work for pay, away from evening and night hours toward “usual” daytime hours. Much of the trend is related to increased real incomes, with rising educational attainment, the changing composition of the (declining) manufacturing industry, and the increased wage premium for undesirable work times - evenings and nights - that we document accounting for the rest. The trend exists in all major industries except retail, in which changes in technology biased work away from daytime hours. It was accelerated by the sharp increase in telework that occurred after the Covid pandemic, an increase that was especially concentrated during daytime hours. While we observe the same phenomenon in France from 1966 to 2010, we do not in the U.K. from 1974-2015, arguably because of the very sharp decline in unionization in the U.K. and the changes in retailing.