8.13 WCAG 2.1 Success Criterion 2.2.1 − Timing Adjustable
Ideally ensure processes on a website are not time dependent. If they are, ensure persons with disabilities can either adjust or stop the time limit so they can have enough time to complete their task.
Before Rectification
This example warns a person that time is about to expire.
After Rectification
A better approach is to allow the person to extend the time.
WCAG 2.1 Reference:
https://www.w3.org/WAI/WCAG21/Understanding/timing-adjustable