# wait(until:) Blocks the current thread until the condition is signaled or the specified time limit is reached. ``` func wait(until limit: Date) -> Bool ``` ## Parameters `limit` The time at which to wake up the thread if the condition has not been signaled. ## Return Value if the condition was signaled; otherwise, if the time limit was reached. ## Discussion You must lock the receiver prior to calling this method. ## See Also [`- lock`](/documentation/Foundation/NSLocking/lock()) Attempts to acquire a lock, blocking a thread’s execution until the lock can be acquired. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)