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, …

It is daytime on the side of the Earth that is facing the Sun. When it is nighttime, that side of the Earth is facing away from the Sun. It takes 24 hours for the Earth to spin once, so that is one day, including …

Find out today's date, current time, day of the week, week number, and more. Your complete date and time resource.

On This Day In History: anniversaries, birthdays, major events, and time capsules. This day's facts in the arts, politics, and sciences.

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

5 days ago · The simple definition of DAY is a period of 24 hours beginning at midnight : one of the seven time periods that make up a week.

We keep track of fun holidays and special moments on the cultural calendar — giving you exciting activities, deals, local events, brand promotions, and other exciting ways to celebrate. Copyright © …

Jun 26, 2026 · The time taken for the Earth to make a full rotation about its axis with respect to the fixed stars; a sidereal day or stellar day. (informal or meteorology) A 24-hour period beginning at 6am or …

Find out what happened today or any day in history with On This Day. Historical events, birthdays, deaths, photos and famous people, from 4000 BC to today.

A day is a 24-hour period, or the length of time it takes the Earth to rotate fully on its axis. There are 365 days in a year, and 31 days in the month of January.