IPA: /ˈnaɪtˌtaɪm/
KK: /ˈnaɪtˌtaɪm/
Relating to or happening during the hours of darkness after the sun has set.
The nighttime sky was filled with stars.
The period of time when it is dark outside, typically from when the sun goes down until it rises again.
The stars are beautiful to see during nighttime.
Nighttime → It is formed from "night" (from Old English *niht*, meaning the period of darkness) and "time" (from Old English *tima*, meaning a period or duration). The word "nighttime" refers to the period of time during which it is night.
Think of the word 'night' as the time when it is dark, and 'time' as a duration — together, they help you remember that 'nighttime' is the duration of darkness.
No commonly confused words.