#time the continuum of experience in which events pass from the future through the present to the past
supertype: time_measure__temporal_attribute_or_quality_or_measure (pm) temporal duration or positions of time_points and time_intervals along the universal timeline
subtype: geological_time__geologic_time__geologictime the time of the physical formation and development of the earth (especially prior to human history)
subtype: aeon__eon the longest division of geological time; two or more eras
subtype: geological_period__period a unit of geological time during which a system of rocks formed; "ganoid fishes swarmed during the earlier geological periods"
subtype: ice_age__iceage__glacial_period__glacialperiod__glacial_epoch any period of time during which glaciers covered a large part of the earth's surface
instance: Quaternary_period__Quaternary__Age_of_Man Tertiary_period__Tertiary Cretaceous_period__Cretaceous Jurassic_period__Jurassic Triassic_period__Triassic Permian_period__Permian Carboniferous_period__Carboniferous Pennsylvanian_period__Pennsylvanian__Upper_Carboniferous__Upper_Carboniferous_period Missippian_period__Mississippian__Lower_Carboniferous__Lower_Carboniferous_period Devonian_period__Devonian__Age_of_Fishes Silurian_period__Silurian Ordovician_period__Ordovician Cambrian_period__Cambrian
subtype: geological_era__era a major division of geological time; an era is usually divided into two or more periods
instance: Cenozoic_era__Cenozoic__Age_of_Mammals Mesozoic_era__Mesozoic__Age_of_Reptiles Paleozoic_era__Paleozoic Precambrian_period__Precambrian Proterozoic__Preoterozoic_era Archean_era__Archean__Archeozoic__Archaeozoic__Archeozoic_era__Archaeozoic_era
subtype: epoch a unit of geological time
instance: Holocene_epoch__Holocene__Recent_epoch Pleistocene_epoch__Pleistocene__Glacial_epoch Pliocene_epoch__Pliocene Miocene_epoch__Miocene Oligocene_epoch__Oligocene Eocene_epoch__Eocene Paleocene_epoch__Paleocene
subtype: biological_time the time of various biological processes
subtype: circadian_rhythm__circadianrhythm a daily cycle of activity observed in many living organisms
subtype: menopause__climacteric__changeoflife the time in a woman's life in which the menstrual cycle ends
subtype: climacteric a period in a man's life corresponding to menopause
subtype: gestation_period__gestationperiod__gestation the period during which an embryo develops (about 266 days in humans)
subtype: refractory_period (neurology) the time after a neuron fires or a muscle fiber contracts during which a stimulus will not evoke a response
subtype: cosmic_time the time covered by the physical formation and development of the universe
subtype: sidereal_time measured by the diurnal motion of stars
subtype: sidereal_day__day the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day
subtype: sidereal_year the time for the earth to make one complete revolution around the sun, relative to the fixed stars
subtype: sidereal_hour 1/24 of a sidereal day
subtype: sidereal_month period between successive conjunctions with a star, 27.322 days
subtype: solstice either of the two times of the year when the sun is at its greatest distance from the celestial equator
subtype: summer_solstice__June_21__midsummer June 21, when the sun is at its northernmost point
subtype: winter_solstice December 22, when the sun is at its southernmost point
subtype: equinox either of two times of the year when the sun crosses the plane of the earth's equator and day and night are of equal length
subtype: March_equinox__vernal_equinox__spring_equinox March 21
subtype: September_equinox__autumnal_equinox__fall_equinox September 22
subtype: civil_time__civiltime__standard_time__local_time__localtime the official time in a local region (adjusted for location around the Earth); established by law or custom
subtype: Atlantic_Time__Atlantic_Standard_Time standard time in the 4th time zone west of Greenwich, reckoned at the 60th meridian; used in Puerto Rico and the Virgin Islands and Bermuda and the Canadian Maritime Provinces
subtype: Eastern_Time__Eastern_Standard_Time__EST standard time in the 5th time zone west of Greenwich, reckoned at the 75th meridian; used in the eastern United States
subtype: Central_Time__Central_Standard_Time__CST standard time in the 6th time zone west of Greenwich, reckoned at the 90th meridian; used in the central United States
subtype: Mountain_Time__Mountain_Standard_Time__MST standard time in the 7th time zone west of Greenwich, reckoned at the 105th meridian west; used in the mountain states of the United States
subtype: Pacific_Time__Pacific_Standard_Time__PST standard time in the 8th time zone west of Greenwich, reckoned at the 120th meridian west; used in far western states of the United States
subtype: Alaska_Standard_Time__Yukon_Time standard time in the 9th time zone west of Greenwich, reckoned at the 135th meridian west; used in Hawaii and most of Alaska
subtype: Hawaii_Time__Hawaii_Standard_Time standard time in the 10th time zone west of Greenwich, reckoned at the 150th meridian west; used in Hawaii and the western Aleutian Islands
subtype: Bering_Time__Bering_Standard_Time standard time in the 11th time zone west of Greenwich, reckoned at the 165th meridian west; used in the Midway Islands
subtype: daylight-saving_time__daylight-savings_time__daylight_saving__daylight_savings time during which clocks are set one hour ahead of local standard time; widely adopted during summer to provide extra daylight in the evenings
subtype: nowadays__present the period of time that is happening now; any continuous stretch of time including the moment of speech; "that is enough for the present"; "he lives in the present with no thought of tomorrow"
subtype: now the momentary present; "Now is a good time to do it"; "it worked up to right now"
subtype: here_and_now__present_moment__presentmoment__moment at this time; "the disappointments of the here and now"; "she is studying at the moment"
subtype: date.nowadays the present; "they are up to date"; "we haven't heard from them to date"
subtype: modern_times__times__time__present_time__presenttime__modernworld__contemporaryworld the circumstances and ideas of the present age; "behind the times"; "in times like these"
subtype: time_being__nonce the present occasion; "for the nonce"
subtype: today the present time or age; "the world of today"; "today we have computers"
subtype: tonight the present or immediately coming night
subtype: past_times__past__yesteryear__yore the time that has elapsed; "forget the past"
subtype: bygone__water_under_the_bridge__waterunderthebridge past events to be put aside; "let bygones be bygones"
subtype: old past times (especially in the phrase "in days of old")
subtype: history the aggregate of past events: "a critical time in the school's history"
subtype: time_immemorial__time_out_of_mind the distant past beyond memory
subtype: auld_langsyne__langsyne__old_times__oldtime__thegoodoldday past times remembered with nostalgia
subtype: yesterday.past_times the recent past; "yesterday's solutions are not good enough"; "we shared many yesterdays"
subtype: hereafter__future__futurity__time_to_come the time yet to come
subtype: by-and-by an indefinite time in the future; "he'll get around to it in the sweet by-and-by"
subtype: millennium.hereafter (New Testament) in Revelations it is foretold that those faithful to Jesus will reign with Jesus over the earth for a thousand years; the meaning of these words have been much debated; some denominations (e.g. Jehovah's Witnesses) expect it to be a thousand years of justice and peace and happiness
subtype: offing.hereafter the near or foreseeable future; "there was a wedding in the offing"
subtype: tomorrow.hereafter the near future; "tomorrow's world"; "everyone hopes for a better tomorrow"
subtype: musical_time__musicaltime the beat of musical rhythm
subtype: musical_rhythm__musicalrhythm__rhythm__beat the basic rhythmic unit in a piece of music; "the piece has a fast rhythm"; "the conductor set the beat"
subtype: backbeat (rock music) a loud steady beat
subtype: downbeat the first beat of a musical measure (as the conductor's arm moves downward)
subtype: upbeat an unaccented beat (especially the last beat of a measure)
subtype: syncopation a musical rhythm accenting a weak beat
subtype: common_time__four-four_time__common_measure a time signature indicating four beats to the bar
subtype: tempo (music) the speed at which a composition is to be played
subtype: accelerando a gradually increasing tempo of music; "my ear will not accept such violent accelerandos"
subtype: allegretto a quicker tempo than andante but not as fast as allegro
subtype: allegro.tempo a brisk and lively tempo
subtype: allegro_con_spirito__allegroconspirito lively with spirit
subtype: andante a moderately slow tempo (a walking pace)
subtype: meno_mosso to be played at reduced speed; less rapid
subtype: continuum a continuous nonspatial whole or extent or succession in which no part or portion is distinct of distinguishable from adjacent parts
subtype: history.continuum the continuum of events occurring in succession leading from the past to the present and even into the future: "all of human history"
subtype: Greenwich_Mean_Time__Greenwich_Time__GMT__universal_time__universaltime__ut__UT1 the local time at the 0 meridian passing through Greenwich, England; it is the same everywhere
subtype: universal_time_coordinated__UTC__utc Greenwich Mean Time updated with leap seconds
subtype: Earth-received_time__ERT the universal time coordinated when an event is received on Earth
subtype: transmission_time__TRM the universal time coordinated time when a transmission is sent from Earth to a spacecraft or other celestial body
subtype: spacecraft_event_time__SCET the universal time coordinated time on board the spacecraft; "SCET = TRM + OWLT"
subtype: continuance__duration the property of enduring or continuing in time
subtype: infinity__eternity__forever time without end
subtype: alpha_and_omega.infinity__alphaandomega the first and last; signifies God's eternity
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