Forward 1 hour
When local standard time was about to reach
Monday, December 1, 1930, 12:00:00 midnight clocks were turned forward 1 hour to
Monday, December 1, 1930, 1:00:00 am local daylight time instead.
Sunrise and sunset were about 1 hour later on Dec 1, 1930 than the day before. There was more light in the evening.