uptime

== English == === Etymology === From up (“(computing) functional, working”, adjective) +‎ time. === Noun === uptime (countable and uncountable, plural uptimes) (computing) The period of time a computer has functioned since last requiring a reboot. The amount of time, or the proportion of total time, during which some system or machinery is operable. ==== Antonyms ==== downtime === Anagrams === impute