Sunrise, Sunset Daylight

trees， or riverside viewpoint — usually gives the longest visible sunset. River and rooftop viewpoints often produce the clearest skyline sunsets in London， In London， hills or other obstructions described in the local notes can change when the Sun first or last becomes visible from a particular street or viewpoint. ， buildings， and street-level obstructions can make the visible sunset feel earlier than the official sunset time. A clear western horizon — often from a rooftop， trees， bridges， bridge， especially when glass reflections along the Thames intensify in the final minutes before the sun drops. Official solar times assume an astronomical horizon. Buildings，。