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 …

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. 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 is the time when it is light, or the time when you are up and doing things. The weather did not help; hot by day, cold at night. 27 million working days are lost each year due to work …

12 hours ago · Get into the spirit of the day by celebrating, observing, learning and enjoying. Connect with something pet-related or food-related, for a good cause or just for fun. The next …

Idioms call it a day, to stop working for the rest of the day: Let's call it a day; we've worked eighteen hours. Idioms day in, day out, every day without fail;

DAY definition: the interval of light between two successive nights; the time between sunrise and sunset. See examples of day used in a sentence.

Sep 25, 2025 · Another way to measure a day is to count the amount of time it takes for a planet to completely spin around and make one full rotation. This is called a sidereal day. On Earth, a …