response time

noun
  1. 1

    The period of time between the application of a stimulus and the associated response from a cell or tissue

  2. 2

    The time taken for a person (or human-controlled system) to respond to a request

  3. 3

    The time taken for the display of an instrument to move to a new value following a step change

  4. 4

    The period of time between a request for a service and the associated response; typically the request is caused by a user at a terminal hitting the return key, and the response is displayed on a screen

Source: https://en.wiktionary.org/wiki/response%20time