As nouns the difference between uptime and runtime
is that uptime is the period of time a computer has functioned since last requiring a reboot while runtime is an alternative spelling of lang=en.
As an adjective runtime is
an alternative spelling of lang=en.
uptime
English
Noun
(computing) The period of time a computer has functioned since last requiring a reboot.
Anagrams
*
runtime
English
Adjective
(-)
Anagrams
*