Time

The length of a year - the time it takes for a planet to complete one orbit around its star - has not changed in terms of Earth's orbit around the sun. It remains approximately 365.25 days.

As far as I'm aware we are in the 'digital age' the last was the 'atomic age'.

In the geological time scale we are currently in the Cenozoic era which dates from 65.5 million years ago to the present day.

There is currently no scientific evidence to suggest that the Large Hadron Collider can enable time travel. Time travel remains a theoretical concept that is not yet achievable with our current understanding of physics.

Sorry, jassy033; but 12 p.m. is noontime. The initials "p.m." stand for "post meridiem", which means "after noon". Contrast that with "a.m." (ante meridiem), meaning "before noon".

I was not thinking of the strict Latin meaning, but more of what I have encountered in daily usage. In fact it's a moot philosophical point, since strictly 12 is neither before nor after noon or midnight, it is exactly dead on!

There are 31,536,000,000,000 nanoseconds in a millennium on Earth. Since a day on Mars is about 24.6 hours, a millennium on Mars would have approximately 31,129,377,159,703 nanoseconds.

The 21st century ends with the year 2100. The next century begins with 2101.

It was the same for this last turnover, but everybody celebrated at the beginning of 2000, no matter what the experts said. It's the change of the numbers that gets us excited.

50000 hours is equivalent to approximately 2083.33 days.

Morning fog often burns off by mid-morning or noon as the sun rises and warms the air, causing the fog to evaporate. However, this can depend on the weather conditions and local geography.

Midnight would be 12am since one min past midnight would be 12.01 am.

12pm would be in the afternoon.

8pm Pacific Standard Time (early Nov. until mid-March) or 9pm Pacific Daylight Saving Time (mid-March until early Nov.)

During both day and night, the Earth continues to rotate on its axis, causing the change in lighting conditions. Other similarities include the presence of celestial bodies like the Sun, Moon, and stars in the sky although they are more visible during night. Additionally, living organisms exhibit similar behaviors such as sleeping, feeding, and moving around during both day and night.

"AM" stands for "ante meridiem," which refers to the morning hours from midnight to just before noon. So "am" refers to the time period during the morning, not night.

Tornadoes can occur at any time of day, but they may seem more common during late afternoon and early evening due to favorable atmospheric conditions. For example, daytime heating can lead to instability in the atmosphere, while the evening hours can see the convergence of different air masses, providing the necessary ingredients for tornado formation.

In some cultures, the days begin/end at sunset. In some cultures, days begin/end at sunrise. A day of the Gregorian calendar begins/ends at 00:00 (12 "midnight").

A day with 12 hours of sunlight and 12 hours of darkness is known as an equinox. This occurs twice a year when the sun is directly above the equator, causing equal lengths of day and night. It marks the transition between seasons.

One way to tell time at night is by using a watch with a light-up display or a digital clock with illuminated numbers. Alternatively, nightstands often have digital alarm clocks or devices with built-in clocks that are visible in the dark. Another option is to have a bedside clock that projects the time onto the ceiling or wall.

morning

12 am, also known as midnight, is the start of the day on a 12-hour clock. It is when the clock resets to the beginning of the day, marking the transition from night to morning at the start of a new day.

Peter Henlein, a German locksmith and clockmaker, is credited with inventing the first portable spring-driven clock in the 16th century, which is considered one of the first types of wind-up clocks.

A day consists of 24 hours because it is based on the time it takes for the Earth to complete one full rotation on its axis. This division into 24 hours is a convention that has been used for centuries for practical and cultural reasons.

It is called an equinox. During an equinox, the sun is directly above the equator, resulting in equal lengths of day and night worldwide.

It all depends upon the rotation of the comet, as the length of a 'day' is determined by the rate of rotation and the position from which it is measured on the comet itself as well as the current position of the comet in relation to the nearest 'sun'. There is no simple answer.

12PM is commonly used improper terminology. There is no such thing. If you see it in print it is wrong and you may have to use context to determine what the writer meant.

The abbreviations AM and PM stand for Ante Meridian and Post Meridian, respectively. The terms ante and post mean before and after. The term meridian refers to when the sun is at the middle of its arc across the sky.

Nominally the sun is at its meridian at noon. Since it is *at* its meridian this is neither before nor after the meridian. It *is* the meridian.

Likewise, midnight is neither 12 AM nor 12 PM. It is equally far from both. It is simply 12 midnight.

The military clock is better than the civilian clock for many reasons. One is that eliminates the complexity of specifically accounting for whether a time is before of after midnight. On the military clock noon is read as 1200 hours, and midnight is read as 2400 hours.

Midnight to noon is 12 hours.