Standard time
Sunrise 6:51 AM
Sunset 4:48 PM
Permanent DST scenario
Sunrise 7:51 AM
Sunset 5:48 PM
Later winter evenings come with darker winter mornings. Both clock readings shift one hour. The amount of sunlight does not increase.
Census representative internal point (36.233499, -115.264037). NOAA approximate model, tested against USNO references. Horizon and weather not represented. Methodology.