On average, this is 24 hours (86,400 seconds). As a day passes at a given location it experiences morning, afternoon, evening, and night. This daily cycle drives circadian rhythms in many organisms, …

The meaning of DAY is the time of light between one night and the next. How to use day in a sentence.

Definition of day noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

1 day ago · Longest day in Columbus, OH The longest day of the year will be in around 5 months, during the summer solstice on June 20, 2026, with a daylight length of 15 hours and 3 minutes.

1. Of or relating to the day. 2. Working during the day: the day nurse. 3. Occurring before nightfall: a day hike.

DAY definition: 1. a period of 24 hours, especially from twelve o'clock one night to twelve o'clock the next night…. Learn more.

Day definition: The period of light between dawn and nightfall; the interval from sunrise to sunset.