How long unstake sui?

Excuse me, could you please clarify what you mean by "unstake sui"? It seems like you're referring to a specific process or action related to cryptocurrency or blockchain technology, but "unstake sui" isn't a commonly used term in the industry. Assuming you're asking about the process of unstaking a cryptocurrency or token, the duration can vary depending on the specific blockchain protocol or platform. Some protocols allow for instant unstaking, while others require a waiting period or lock-up period before the funds can be withdrawn. If you're referring to a specific cryptocurrency or token, it would be helpful to know which one so I can provide a more accurate answer. In general, the best way to find out the unstaking duration for a particular cryptocurrency or token is to consult the official documentation or support channels for that protocol or platform.