Photosynthesis does not occur during the night. For photosynthesis to take place, water, carbon dioxide and sunlight are necessary, the last of which is missing.
Photosynthesis is the process by which green plants manufacture their own nutrition in their green leaves. The cells of their green leaves contain cell organelles called chloroplasts. These chloroplasts contain a green coloring pigment called chlorophyll. Chlorophyll converts sunlight into chemical energy in the form of simple sugars such as glucose, which serves as food for the cells. Green plants are called autotrophs, as they produce their own food; this process forms the basis for life on earth. Oxygen is released into the atmosphere as a by-product of photosynthesis.