When is the best time to take pictures in a day?

It depends on what you shot. Generally, the scenery and people who use natural light should be chosen when the sun shines obliquely, such as 9- 10 in the morning and 4-5 in the afternoon. Shoot sunrise and sunset in the early morning and evening; If you want to shoot the starry sky and the Milky Way, you have to choose the night when the night is dark and windy.