A quantity used to specify the order in which events occurred and measure the amount by which one even preceded or followed another. In special relativity, ct (where c is the speed of light and t is time), plays the role of a fourth dimension.
Advanced Time, Calendar, Eric Weisstein's World of Astronomy Day, Eric Weisstein's World of Astronomy Fortnight, Eric Weisstein's World of Astronomy Hour, Eric Weisstein's World of Astronomy Minute, Eric Weisstein's World of Astronomy Moon, Eric Weisstein's World of Astronomy Retarded Time, Second, Eric Weisstein's World of Astronomy Week, Eric Weisstein's World of Astronomy Year Eric Weisstein's World of Astronomy
References
Duffett-Smith, P. "Time." Practical Astronomy with Your Calculator, 3rd ed. Cambridge, England: Cambridge University Press, pp. 1-23, 1992.
