coordinate clock
101Decade — For other uses, see Decade (disambiguation). A decade is a period of 10 years. The word is derived (via French) from the Ancient Greek dekas which means ten. This etymology is sometime confused with the Latin decas (ten) and dies (days), which is …
102Cosmological decade — A cosmological decade ( CÐ ) is a division of the lifetime of the cosmos. The divisions are logarithmic in size, on base 10. Each successive cosmological decade represents a ten fold increase in the total age of the universe.[1] As expressed in… …
103Civil time — In modern usage, civil time refers to statutory time scales designated by civilian authorities, or to local time indicated by clocks. Modern civil time is generally standard time in a time zone at a fixed offset from Coordinated Universal Time… …
104Continuous signal — A continuous signal or a continuous time signal is a varying quantity (a signal) whose domain, which is often time, is a continuum (e.g., a connected interval of the reals). That is, the function s domain is an uncountable set. The function… …
105DUT1 — This graph shows the historical evolution of DUT1 between 1985 and 2009. The vertical segments are due to leap seconds. The time correction DUT1 (sometimes also written DUT) is the difference between Universal Time (UT1), which is defined by… …
106Date (metadata) — In metadata, the term date is a representation term used to specify a calendar date in the Gregorian calendar. Many data representation standards such as XML, XML Schema, Web Ontology Language specify that ISO date format ISO 8601 should be used …
107Weekday names — Days of the week redirects here. For the song by Stone Temple Pilots, see Days of the Week (song). The names of the days of the week from the Roman period have been both named after the seven planets of classical astronomy and numbered, beginning …
108Nuclear timescale — In astrophysics, the nuclear timescale is an estimate of the lifetime of a star based solely on its rate of fuel consumption. Along with the thermal and dynamical time scales, it is used to estimate the length of time a particular star will… …
109Hobart and William Smith Colleges — Seals of the two colleges Established 1822/1908 …
110Gravitational time dilation — is the effect of time passing at different rates in regions of different gravitational potential; the higher the local distortion of spacetime due to gravity, the slower time passes. Albert Einstein originally predicted this effect in his theory… …
