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.

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.

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

1 day 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.

2 days ago · Day of the year is a number between 1 and 365 (in 2025), January 1 is day 1. After today 0 days are remaining in this year. This page uses the ISO-8601 ordinal date format. There is also …