Rule ID |
Timing 1 |
Definition |
A page that contains time limits for user interaction or viewing content must provide a way to turn off, adjust or extend the time limits. |
Purpose |
- People with physical disabilities may need more time to respond to web sites with time limits for selecting an option.
- People with visual impairments and visual processing learning disabilities may need more time to read material if the rendering of the material is automatically removed or obscured after a time period.
- Providing adjustable time periods in line with the persons capabilities makes it possible for people to complete the tasks associated with the website.
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Mappings |
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HTML4 Legacy Techniques
(Required)
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HTML5 and ARIA Techniques
(Required)
|
WCAG Success Criteria |
2.2.1 Timing Adjustable (Level A, Primary Success Criterion)
Other Related Success Criterion:
|
Rule Category |
Timing |
Scope |
Element |
Target Resources |
Pages with scripting or other embedded technologies to control the response time for input or the amount of time to view content
|
Techniques |
- Turn off: The user is allowed to turn off the time limit before encountering it.
- 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.
- 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 time.
- 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.
- Essential Exception: The time limit is essential and extending it would invalidate the activity.
- 20 Hour Exception: The time limit is longer than 20 hours.
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Manual Checks |
- If the page contains time limits, verify that there is a way to turn off, adjust or extend the time limits; or that one of the three exceptions applies.
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Informational Links |
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