Noon (also known as noontime or midday) is 12 o'clock in the daytime.
Solar noon is the time when the Sun appears to contact the local celestial meridian. This is when the Sun reaches its apparent highest point in the sky, at 12 noon apparent solar time and can be observed using a sundial. The local or clock time of solar noon depends on the date, longitude, and time zone, with Daylight Saving Time tending to place solar noon closer to 1:00pm.
Morning is either the period from sunrise to noon, or the period from midnight to noon. In the first definition it is preceded by the twilight period of dawn, and there are no exact times for when morning begins (also true of evening and night) because it can vary according to one's latitude, and the hours of daylight at each time of year. However, morning strictly ends at noon, when afternoon starts.
Morning precedes afternoon, evening, and night in the sequence of a day. Originally, the term referred to sunrise.
Greenwich Mean Time (GMT) is the local mean time at the Royal Observatory in Greenwich, London, counted from midnight. At different times in the past, it has been calculated in different ways, including being calculated from noon; as a consequence, it cannot be used to specify a particular time unless a context is given. The term "GMT" is also used as one of the names for the time zone UTC+00:00 and, in UK law, is the basis for civil time in the United Kingdom.
Because of Earth's uneven angular velocity in its elliptical orbit and its axial tilt, noon (12:00:00) GMT is rarely the exact moment the Sun crosses the Greenwich Meridian and reaches its highest point in the sky there. This event may occur up to 16 minutes before or after noon GMT, a discrepancy described by the equation of time. Noon GMT is the annual average (the arithmetic mean) moment of this event, which accounts for the word "mean" in "Greenwich Mean Time".
Ra (/rɑː/; Ancient Egyptian: rꜥ; also transliterated rꜥw, pronounced [ˈɾiːʕuw] ; cuneiform: 𒊑𒀀 ri-a or 𒊑𒅀ri-ia; Phoenician: 𐤓𐤏, romanized: rʿ) or Re (Coptic: ⲣⲏ, romanized: Rē) was the ancient Egyptian deity of the Sun. By the Fifth Dynasty, in the 25th and 24th centuries BC, Ra had become one of the most important gods in ancient Egyptian religion, identified primarily with the noon-day Sun. Ra ruled in all parts of the created world: the sky, the Earth, and the underworld. He was believed to have ruled as the first pharaoh of Ancient Egypt. He was the god of the Sun, order, kings and the sky.
Ra was portrayed as a falcon and shared characteristics with the sky-god Horus. At times, the two deities were merged as Ra-Horakhty, "Ra, who is Horus of the Two Horizons". When the god Amun rose to prominence during Egypt's New Kingdom, he was fused with Ra as Amun-Ra.
At the 1936 Winter Olympics at Garmisch-Partenkirchen, Germany, alpine skiing was arranged for the first time in the Olympics, a combined event for men and women.
Both downhills were run on Kreuzjoch on Friday, 7 February, with the women at 11:00 and the men at noon. The two-run slalom races were run on the weekend at Gudiberg with the women's event on Saturday and the men's on Sunday.
Afternoon is the time between noon and sunset or evening. It is the time when the sun is descending from its peak in the sky to somewhat before its terminus at the horizon in the west. In human life, it occupies roughly the latter half of the standard work and school day. In literal terms, it refers to a time specifically after noon.
The 45th parallel north is a circle of latitude that is 45 degrees north of Earth's equator. It crosses Europe, Asia, the Pacific Ocean, North America, and the Atlantic Ocean.The 45th parallel north is often called the halfway point between the equator and the North Pole, but the true halfway point is 16.0 km (9.9 mi) north of it (approximately between 45°08'39" and 45°08'40") because Earth is an oblate spheroid; that is, it bulges at the equator and is flattened at the poles.
At this latitude, the sun is visible for 15 hours 37 minutes during the summer solstice, and 8 hours 46 minutes during the winter solstice. The midday Sun stands 21.6° above the southern horizon at the December solstice, 68.4° at the June solstice, and exactly 45.0° at either equinox.
Midnight is the transition time from one day to the next – the moment when the date changes, on the local official clock time for any particular jurisdiction. By clock time, midnight is the opposite of noon, differing from it by 12 hours.
Solar midnight is the time opposite to solar noon, when the Sun is closest to the nadir, and the night is equidistant from sunset and sunrise. Due to the advent of time zones, which regularize time across a range of meridians, and daylight saving time, solar midnight rarely coincides with 12 midnight on the clock. Solar midnight depends on longitude and time of the year rather than on time zone. In ancient Roman timekeeping, midnight was halfway between dusk and dawn (i.e., solar midnight), varying according to the seasons.
Unequal hours are the division of the daytime and the nighttime into 12 sections each, whatever the season. They are also called temporal hours, seasonal hours, biblical or Jewish hours, as well as ancient or Roman hours (Latin: horae temporales). They are unequal duration periods of time because days are longer and nights shorter in summer than in winter. Their use in everyday life was replaced in the late Middle Ages by the now common ones of equal duration.
The first temporal hour of daylight begins at sunrise, the first of night at sunset. For example, if daylight and night are each divided into twelve temporal hours, midday and midnight are each the beginning of the seventh hour.