Principle 2 Operable · Guideline 2.2: Enough Time
2.2.3 No Timing
No time limits at all – except for real-time events.
What this means in practice
The strictest version: no countdown forms, no expiring carts. Live events and auctions remain exempt because timing is essential there.
Normative wording
The binding text lives at the W3C. What you read here is our own faithful rendering – not a quotation.