For each time limit that is set by the content, at least one of the following is true:
Turn off
The user is allowed to turn off the time limit before encountering it; or
Adjust
The user is allowed to adjust the time limit before encountering it over a wide range that is at least ten times the length of the default setting; or
Extend
The user is warned before time expires and given at least 20 seconds to extend the time limit with a simple action (for example, “press the space bar”), and the user is allowed to extend the time limit at least ten times; or
Real-time Exception
The time limit is a required part of a real-time event (for example, an auction), and no alternative to the time limit is possible; or
Essential Exception
The time limit is essential and extending it would invalidate the activity; or
20 Hour Exception
The time limit is longer than 20 hours.
Note
This success criterion helps ensure that users can complete tasks without unexpected changes in content or context that are a result of a time limit. This success criterion should be considered in conjunction with Success Criterion 3.2.1, which puts limits on changes of content or context as a result of user action.
Time limits have the possibility to be turned off, adjusted or extended, unless they are essential or longer than 20 hours.