Nighttime or Night Time: Which Is Correct? - Strategies for Parents “Nighttime” and “night-time,” the latter a British variant spelled with a hyphen, are the only correct compound word forms “Nighttime” refers to the time of the day when the sun disappears, and darkness falls, lasting until sunrise the following day
Nighttime vs. Night Time: Understanding the Difference ???? In modern English, ‘nighttime’ is the accepted compound word in most contexts, particularly in American English Meanwhile, ‘night time’ is more of an older or poetic form, less common in contemporary usage
Night - Wikipedia Daylight illuminates one side of the Earth, leaving the other in darkness The opposite of nighttime is daytime or morning Earth's rotation causes the appearance of sunrise and sunset Moonlight, airglow, starlight, and light pollution dimly illuminate night