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.

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

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

DAY meaning: 1 : a period of 24 hours beginning at midnight one of the seven time periods that make up a week; 2 : the time of light between one night and the next the part of the day when …

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

1 day ago · Day of the year is a number between 1 and 365 (in 2025), January 1 is day 1. After today 1 days are remaining in this year. This page uses the ISO-8601 ordinal date format. …

16 hours ago · Find out what happened on any date or day in history with On This Day. Explore historical events, birthdays, deaths and famous people, from 4000 BC to today.