What is the maximum time Twitter polls can remain open?

Twitter polls can remain open for a maximum of 7 days.

Twitter introduced polls in 2015, allowing users to attach multiple-choice questions to posts. The poll creator selects its duration when composing the post; the default duration is one day, but it can be extended to the seven-day maximum.

The full supported range is shorter than many users expect: polls may run for as little as five minutes or as long as seven days. A poll closes automatically when its selected duration expires, and the final result is then displayed.

A common mix-up is confusing the poll’s lifespan with the time a post remains visible in a timeline. The post can remain accessible after voting closes, but votes can no longer be submitted. Twitter polls also traditionally allow up to four answer choices, with votes presented as anonymous to other participants.