Summary Of: International Earth Rotation and Reference Systems Service

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| cite | references or sources | reliable sources | Unverifiable | | | IERS (disambiguation) | time | reference frame | International Celestial Reference System | leap seconds | April 2 | 2002 | United States Naval Observatory | Earth | Paris Observatory | UT1 | International Atomic Time | Coordinated Universal Time | International Terrestrial Reference System | International Celestial Reference System | International Celestial Reference Frame | Earth rotation | ΔT | v | d | standards | Time | Chronometry | Orders of magnitude | Units of time | Metrology | | | Time Portal | UTC | UT | TAI | ISO 31-1 | Second | DUT1 | Leap second | Terrestrial Time | Geocentric Coordinate Time | Barycentric Coordinate Time | Civil time | Minute | Hour | 12-hour clock | 24-hour clock | ISO 8601 | International Date Line | Solar time | Time zone | Daylight saving time | Time offset | 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 | Day | Week | Month | Year | Decade | Century | Millennium | Astronomical | Julian | Gregorian | Islamic | Lunisolar | Solar | Lunar | Epact | Intercalation | Leap year | Tropical year | Equinox | Solstice | Days of the week | Calculating the day of the week | Dominical letter | International Commission on Stratigraphy | Geologic Time | Archaeological dating | Astronomical chronology | Nuclear time scale | Precession | Sidereal time | Galactic year | Fortnight | Jiffy | Lustrum | Saeculum | Shake | Tide | Chronology | Duration | System time | Metric time | Mental chronometry | Time value of money | Timekeeper | Categories | Standards organizations | Timekeeping | Geodesy | Astronomy organizations | Articles lacking sources from July 2007 | All articles lacking sources |