Actions to mitigate the 2019 novel coronavirus disease (COVID-19) have caused daily weekday electricity demand in New York City to decrease by 16% in April compared with expected demand, after accounting for seasonal temperature changes. However, decreases in the city’s electricity demand have not occurred uniformly across the day. The largest differences between actual and expected demand have been during daytime weekday hours when many schools and businesses that normally would have been open are now closed.