The term downtime is used to refer to periods when a system is unavailable. The unavailability is the proportion of a time-span that a system is unavailable or offline. This is usually a result of the system failing to function because of an unplanned event, or because of routine maintenance.

What is downtime for a person?

Downtime for a person is a time when the person can relax: I have three kids, so downtime is scarce.

What does downtime mean at work?

The Business Dictionary describes the downtime definition as: “Period during which an equipment or machine is not functional or cannot work. It may be due to technical failure, machine adjustment, maintenance, or non-availability of inputs such as materials, labor, power.”