29 relations: Antisolar point, Belarusian language, Culmination, Dawn, Day, Daylight saving time, Dusk, Hebrew calendar, Islamic calendar, Meridian (astronomy), Meridian (geography), Nadir, National Institute of Standards and Technology, New Year's Eve, Night, Noon, North, Northern Hemisphere, Polish language, Roman timekeeping, Season, Serbian language, South, Sunrise, Sunset, Time zone, Ukrainian language, 12-hour clock, 24-hour clock.
The antisolar point is the abstract point on the celestial sphere directly opposite of the Sun from an observer's perspective.
Belarusian (беларуская мова) is an official language of Belarus, along with Russian, and is spoken abroad, mainly in Ukraine and Russia.
In astronomy, the culmination of a planet, star, or constellation is its transit over an observer's meridian.
Dawn, from an Old English verb dagian: "to become day", is the time that marks the beginning of twilight before sunrise.
A day, a unit of time, is approximately the period of time during which the Earth completes one rotation with respect to the Sun (solar day).
Daylight saving time (abbreviated DST), sometimes referred to as daylight savings time in U.S., Canadian, and Australian speech, and known as summer time in some countries, is the practice of advancing clocks during summer months so that evening daylight lasts longer, while sacrificing normal sunrise times.
Dusk occurs at the darkest stage of twilight, or at the very end of astronomical twilight after sunset and just before night.
The Hebrew or Jewish calendar (Ha-Luah ha-Ivri) is a lunisolar calendar used today predominantly for Jewish religious observances.
The Islamic, Muslim, or Hijri calendar (التقويم الهجري at-taqwīm al-hijrī) is a lunar calendar consisting of 12 months in a year of 354 or 355 days.
In astronomy, the meridian is the great circle passing through the celestial poles, the zenith, and the nadir of an observer's location.
A (geographical) meridian (or line of longitude) is the half of an imaginary great circle on the Earth's surface, terminated by the North Pole and the South Pole, connecting points of equal longitude.
The nadir (from نظير / ALA-LC: naẓīr, meaning "counterpart") is the direction pointing directly below a particular location; that is, it is one of two vertical directions at a specified location, orthogonal to a horizontal flat surface there.
The National Institute of Standards and Technology (NIST) is one of the oldest physical science laboratories in the United States.
In the Gregorian calendar, New Year's Eve (also known as Old Year's Day or Saint Sylvester's Day in many countries), the last day of the year, is on 31 December which is the seventh day of Christmastide.
Night or nighttime (sp. night-time or night time) is the period of time between sunset and sunrise, when the Sun is below the horizon.
Noon (also midday or noon time) is 12 o'clock in the daytime, as opposed to midnight.
North is one of the four compass points or cardinal directions.
The Northern Hemisphere is the half of Earth that is north of the Equator.
Polish (język polski or simply polski) is a West Slavic language spoken primarily in Poland and is the native language of the Poles.
The Roman clock, or time of day, was divided into 24 hours (Latin horae), 12 hours of light and 12 hours of darkness.
A season is a division of the year marked by changes in weather, ecology, and amount of daylight.
Serbian (српски / srpski) is the standardized variety of the Serbo-Croatian language mainly used by Serbs.
South is one of the four cardinal directions or compass points.
Sunrise or sun up is the instant at which the upper edge of the Sun appears over the horizon in the morning.
Sunset or sundown is the daily disappearance of the Sun below the horizon as a result of Earth's rotation.
A time zone is a region of the globe that observes a uniform standard time for legal, commercial, and social purposes.
The 12-hour clock is a time convention in which the 24 hours of the day are divided into two periods: "The use of AM or PM to designate either noon or midnight can cause ambiguity.
The 24-hour clock is the convention of time keeping in which the day runs from midnight to midnight and is divided into 24 hours, indicated by the hours passed since midnight, from 0 to 23.