Also found in: Acronyms, Idioms.
up time[′əp ‚tīm]
The time during which equipment is either producing work or is available for productive work. Also known as available time.
A period during which value is being added to a product by a machine or a process.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.