The antonyms for the term "dawn-to-dark" are vast and varied. The opposite of a full day or a 24-hour period can be a minute, an hour, or even just a moment. The antonyms can also refer to specific times of day, such as evening, night, midnight, or early morning. Additionally, they can signify brief periods like breakfast, lunchtime, or snack time. Nightfall, dusk, and sunset are similarly opposite to dawn, which is the start of the day. Overall, the opposites of "dawn-to-dark" encompass every other time, moment, or hour of the day or night.