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?????? ?????	???? Chronometry Orders of magnitude Metrology
??????????? ???	?????? UTC offset ???? Δ?? DUT1 IERS ????? ??-? ????? ???? ??????????? ????? ???? 12-hour clock 24-hour clock Barycentric Coordinate Time Civil time ??????? ??????? ???? Geocentric Coordinate Time ??????????? ????? ???? ??? ??????? ??? ???? Terrestrial Time ???? ?????
???????? ???	Barycentric Dynamical Time Ephemeris time ??????? ??? ???? ??? ????????
??????????????? ????	Absolute time and space ?????-??? Chronon Continuous time Coordinate time Cosmological decade Discrete time Planck epoch ???????? ???? Proper time ?????????? ?????? Time dilation Gravitational time dilation Time domain T-symmetry
???? ?????????????	???? Astrarium ????? ???? Complication Equation of time History of timekeeping devices Hourglass Marine chronometer Marine sandglass Radio clock Sundial Watch ?? ????
???????	Astronomical Dominical letter Epact ????? ????????? ?????? ?????? Intercalation ??????? ?????? ??????? Lunar Lunisolar Seven-day week Solar Solstice Tropical year Weekday determination Weekday names
???????????? ??? ????????	Dating methodologies ??????????? ???? ?????????????? ????? ?? ????????????????
?????????????? ????????	Galactic year Nuclear time scale Precession Sidereal time
?????? ???	??????? ??? ??? ???? ????? Jiffy Lustrum ????????? ????? ??? Saeculum ??????? Shake Tide ?????? ???
????????? ?????	Chronology Duration Mental chronometry Metric time System time Time value of money Timekeeper