Quote: what is time? I know as long as no one asks me to explain it [»theoCI3_1991]

Quote: time does not exist in its own right; it is part of things at motion and at rest; what happens to things in the past, present, and future [»lucr_55]

Quote: time is nothing but the form of our internal intuition; it has empirical reality but not absolute reality [»kantI_1781, OK]

Quote: there is no absolute space, no absolute time, no simultaneity across distance, not even geometry; these concepts are no more than a language [»poinH_1902, OK]

Quote: we probably can not define time; we measure it by the repetition of some apparently periodic event [»feynRP_1963]

Quote: confirmation of Galileo's experiment of rolling balls down an inclined plane with time measured by water [»settTB1_1961]

Quote: the propagation of light assigns equal tracts to equal time intervals [»einsA_1923]

Quote: all judgments of time concern simultaneous events [»einsA9_1905]

Quote: if time is a continuous real variable, then simultaneous events have measure zero [»peteJL_1981]

Quote: everyday experience fails to differentiate between "simultaneously seen" and "simultaneously happening"; i.e., the difference between local time and time

Quote: choice uncertainty principle -- can not chose between near-simultaneous events within a deadline [»dennPJ11_2007]

Quote: the time of an event depends on the event's reference-body or co-ordinate system [»einsA_1916b]

Quote: Newton--time and space are immutable and absolute [»newtI_1685, OK]

Quote: time and space are really statistical concepts, like temperature; meaningless for a single particle [»creaRP_1986]

Quote: events outside of the light cone from event P have a time-like relation to P; those inside have a space-like relation [»einsA_1956, OK]

Quote: time and change have always been [»aris_322a]

Quote: time is either the same as change or is in some way bound up with it

Quote: since an object's state changes with time, an object exists 'in time'; unlike a value [»maclBJ12_1982]

Quote: the dimension of change is best represented through time, not through past versions [»laurB_1991]

Quote: since objects exist in time, they can be created and destroyed [»maclBJ12_1982]

Quote: memory is a wire turned sideways in time

Quote: time-of-day can be seen as shared memory; maintained locally with periodic corrections from a network time server [»cherDR5_1986]

Quote: without physical time, there is no way to distinguish a failed process from one that is just pausing between events [»lampL7_1978]

Quote: leap year calculations are a generalization of Bresenham's algorithm for drawing lines [»harrMA3_2004]

Quote: if ideal clocks go at the same rate, they always go at the same rate; e.g., sharp spectral lines from atoms of the same chemical element; a foundation of 4-d space-time

Quote: objective time requires a local time (clock) that is extended to events in the whole space [»einsA3_1936]

Quote: can model time as a sequence of states, as date stamps in a database, as temporal relations

Quote: a clock is an unbounded number of ticks, i.e., CLOCK = (tick -> CLOCK) [»hoarCA_1985]

Quote: a clock is a body or system that counts a series of events which can be regarded as equal

Quote: time is activity; the ticking of a clock is the simplest activity; or is time a single tick [»cbb_1980, OK]

Quote: synchronize clocks by mutual influence, occasional corrections, or accuracy [»leibGW11_1696]

Quote: globally synchronize clocks to 1/10'th second by exchanging messages with 3 other nodes every 4 minutes; for protocols, authentication, capabilities [»liskB9_1989]

Quote: an interval-based algorithm for fault-tolerant external clock synchronization [»schmU3_1997]

Quote: use hashed and hierarchical timing wheels for constant time maintenance of timers; practical for thousands of active timers [»vargG12_1997]

Quote: a hiker going between valleys is like a clock whose ticks are the hiker's transitions from valley to ridge [»holtAW11_1980]

Quote: a digital device is always in some state; so states partition its existential time and transitions are instantaneous [»holtAW11_1980]

Quote: atomic state can not have duration separate from the duration of the processes that hold the state [»holtAW11_1980]

Quote: though we can refer to times as points or intervals, most temporal references are implicitly stated by tense and event relationships [»alleJF11_1983]

Quote: most philosophical work on time are point-based theories instead of intervals [»alleJF11_1983]

Quote: events occur over an interval, so time associated with events can be decomposed; point times not useful [»alleJF11_1983]

Quote: can model time with discrete (integers) or dense (reals) elements; discrete time points is more widespread [»theoCI3_1991]

Quote: efficient algorithm to convert timestamps into event clocks; reduces state space for model checker of distributed protocols [»dereF3_2001]

Quote: time in the infological model was an index of recorded facts by time [»theoCI3_1991]

Quote: extrinsic time--every statement is embedded in the temporal context that it occurred [»theoCI3_1991]

Quote: the order of acoustical experiences in time can differ from the order of corresponding visual experiences [»einsA_1916b]

Quote: the time sequence of events is not the same as the time sequence of experiences

Quote: the abstract description of a physical system is independent of temporal direction [»petrCA1_1966]

Quote: by exchanging 0s and 1s a switching element becomes its dual; if the element also exchanges 0s for 1s, the dual equals reversing temporal direction [»petrCA1_1966]

Quote: every CML object includes time intervals for model time (system's knowledge) and system time (system's belief about its knowledge) [»theoCI3_1991]