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.

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

DAY definition: 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 · 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.

1 day ago · Day of the year is a number between 1 and 365 (in 2026), January 1 is day 1. After today 362 days are remaining in this year. This page uses the ISO-8601 ordinal date format. …

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

3 days ago · A period of time between two set times which mark the beginning and the end of day in a calendar, such as from midnight to the following midnight or (Judaism) from nightfall to the …

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 …