The Family Of Imran - 3:190
In the creation of the heavens and the earth, and in the alternation of the night and the day, there are signs for those who have understanding.
When does the night begin in the Qur'an?
The Cattle/6:76
"When night fell upon him, he saw a planet and said, "This is my Lord!"When it sank, he said, "I do not love the sinking."
Yaseen/36:37
And the night is a sign for them: We strip the day from it so that they remain in darkness.
The Night/92:1
And certainly the night when it covers,
The Night/92:2
When he appears in the daytime,
The Thunder/13:10
Whether you conceal the Word or reveal it, whether you hide it in the darkness of the night or come out in the daytime, it is one for Him.
The Night Journey/17:78
Observe the prayer from the setting of the sun until the darkness of the night. Observe the Qur´an in the morning. In the morning the Qur´an (recitation) is witnessed.
The Splitting Asunder/84:16
And the redness of the evening,
The Splitting Asunder/84:17
What the night gathers,
The Overthrowing/81:17
And the night that begins to darken,