Time |
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Major concepts | Time · Eternity · Arguments for eternity · Immortality
Deep time · History · Past · Present · Future · Futurology |
Time Portal |
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Measurement and Standards | Chronometry · UTC · UT · TAI ·Second · Minute · Hour · Sidereal time · Solar time · Time zone
Clock · Horology · History of timekeeping devices · Astrarium · Marine chronometer · Sundial · Water clock
Calendar · Day · Week · Month · Year · Tropical year · Julian · Gregorian · Islamic
Intercalation · Leap second · Leap year |
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Chronology | |
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Religion and Mythology | |
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Philosophy | Causality · Eternalism · Eternal return · Event · The Unreality of Time · A-series and B-series · B-Theory of time
Endurantism · Four dimensionalism · Perdurantism · Presentism · Temporal finitism · Temporal parts |
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Physical Sciences | Time in physics · Spacetime · Absolute time and space · T-symmetry
Arrow of time · Chronon · Fourth dimension · Planck epoch · Planck time · Time domain
Theory of relativity · Time dilation · Gravitational time dilation · Coordinate time · Proper time |
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Biology | |
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Psychology | Consciousness and spacetime · Mental chronometry · Reaction time · Sense of time · Specious present |
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Sociology and Anthropology | Futures studies · Long Now Foundation · Time discipline · Time use research |
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Economics | Newtonian time in economics · Time value of money · Time Banking · Time-based currency |
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Related topics | Space · Duration · Time capsule · Time travel · Time signature · System time · Metric time · Hexadecimal time ·Carpe diem · Tempus fugit |