chronometry

Chronometry (from Greek χρόνος "time" and μέτρηση "measurement") is the science of the measurement of time, or timekeeping.

It should not to be confused with chronology, the science of locating events in time, which often relies upon it.

See also

Look up chronometry in Wiktionary, the free dictionary.

• Chronometer
• Cognitive chronometry
• History of timekeeping devices
• Mental chronometry
• Timeline of time measurement technology

v • d • e Time Major concepts Time · Eternity · Arguments for eternity · Immortality Deep time · History · Past · Present · Future · Futurology Time Portal 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 Chronology Astronomical chronology · Geologic Time · Geological history · Geochronology · Archaeological dating Calendar era · Regnal year · Chronicle · Timeline · Periodization Religion and Mythology Time and fate deities · Wheel of time · Kāla · Kalachakra · Prophecy · Dreamtime 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 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 Biology Chronobiology · Circadian rhythms Psychology Mental chronometry · Reaction time · Sense of time · Specious present Sociology and Anthropology Futures studies · Long Now Foundation · Time discipline · Time use research Economics Newtonian time in economics · Time value of money · Time Banking · Time-based currency Related topics Space · Duration · Time capsule · Time travel · Time signature · System time · Metric time · Hexadecimal time · Carpe diem · Tempus fugit

v • d • e Time measurement and standards Major subjects Time · Chronometry · Orders of magnitude · Metrology Time Portal International standards UTC · UT · TAI · ISO 31-1 · DUT1 · Leap second · IERS · Terrestrial Time · Geocentric Coordinate Time · Barycentric Coordinate Time · Civil time · 12-hour clock · 24-hour clock · ISO 8601 · International Date Line · Solar time · Time zone · Daylight saving time · Time offset Obsolete standards Ephemeris time · Barycentric Dynamical Time · Greenwich Mean Time · Prime Meridian Time in physics Spacetime · Chronon · Cosmological decade · Planck epoch · Planck time · T-symmetry · Theory of relativity · Time dilation · Gravitational time dilation · Coordinate time · Proper time · Time domain · Continuous time · Discrete time · Absolute time and space Horology Clock · Astrarium · Atomic clock · Hourglass · Marine chronometer · Radio clock · Sundial · Watch · Water clock · History of timekeeping devices · Equation of time · Complication Calendar Astronomical · Julian · Gregorian · Islamic · Lunisolar · Solar · Lunar · Epact · Intercalation · Leap year · Tropical year · Equinox · Solstice · Seven-day week · Week-day names · Calculating the day of the week · Dominical letter Archaeology & geology International Commission on Stratigraphy · Geologic Time · Archaeological dating Astronomical chronology Nuclear time scale · Precession · Sidereal time · Galactic year Units of time Second · Minute · Hour · Day · Week · Fortnight · Month · Year · Decade · Century · Millennium · Jiffy · Lustrum · Saeculum · Shake · Tide Related topics Chronology · Duration · System time · Metric time · Mental chronometry · Time value of money · Timekeeper

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