IERS may refer to:
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International Earth Rotation and Reference Systems Service — IERS redirects here: for other uses, see IERS (disambiguation) The International Earth Rotation and Reference Systems Service is the body responsible for maintaining global time and reference frame standards, notably through its Earth Orientation … Wikipedia
Earth — This article is about the planet. For other uses, see Earth (disambiguation). Earth … Wikipedia
Coordinated Universal Time — UTC redirects here. For other uses, see UTC (disambiguation). Coordinated Universal Time (abbreviated UTC) is the primary time standard by which the world regulates clocks and time. It is one of several closely related successors to Greenwich… … Wikipedia
Figure of the Earth — An oblate spheroid Geodesy … Wikipedia
Century — For other uses, see Century (disambiguation). Centuries , Centenary , Centennial , and Centennials redirect here. For other uses, see Centuries (disambiguation), Centenary (disambiguation), Centennial (disambiguation), and Centennials… … Wikipedia
Daylight saving time — This article is about daylight saving time in general. For DST in a specific location, see Daylight saving time by country. Summer time and DST redirect here. For other uses, see Summer time (disambiguation) and DST (disambiguation) … Wikipedia
Calendar — For other uses, see Calendar (disambiguation). For the Gregorian calendar for this year, see Common year starting on Saturday. A page from the Hindu calendar 1871–1872. A calendar is a system of organizing days for social, religious, commercial,… … Wikipedia
Clock — For other uses, see Clock (disambiguation). Timepiece redirects here. For the Kenny Rogers album, see Timepiece (album). Platform clock at King s Cross railway station, London … Wikipedia
Day — For other uses, see Day (disambiguation). Water, Rabbit, and Deer: three of the 20 day symbols in the Aztec calendar, from the Aztec calendar stone. A day is a unit of time, commonly defined as an interval equal to 24 hours … Wikipedia
Equinox — This article is about the astronomical event when the sun is at zenith over the Equator. For other uses, see Equinox (disambiguation). For the same event happening on other planets and setting up a celestial coordinate system, see Equinox… … Wikipedia
