Gangnam stays active late, but karaoke bars support visitors take care of time and transport. A lot of venues Exhibit clocks in rooms and present friendly reminders right before a booking finishes. "Day and night time" is more ambiguous if the "time" is meant being tightly sure to "night" alone https://elliotth3t64.thelateblog.com/38311544/the-fact-about-night-gangnam-퍼펙트가라오케-karaoke-guide-that-no-one-is-suggesting