English Explanatory Dictionary

uptime

English dictionary entry

Meanings

noun
  1. The period of time a computer has functioned since last requiring a reboot.
  2. The amount of time, or the proportion of total time, during which some system or machinery is operable.

Word forms

uptime uptimes

Etymology

From up (“(computing) functional, working”, adjective) + time.

Antonyms

downtime
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