In case of a lost buddy, how long should a diver search for them before ascending?

In the event of a lost buddy scenario, the recommended duration for searching is one minute. This timeframe allows a diver to make a reasonable effort to locate their buddy while still adhering to safety protocols. After one minute, divers are instructed to ascend to a safe depth where they can establish communication or signal for their buddy, as prolonged searching at depth without success can lead to increased risks, such as running low on air or descending into further difficulty.

This one-minute guideline strikes a balance between acting promptly in a potentially stressful situation and recognizing the importance of safety. It allows for a quick assessment of the situation, but also prepares the diver to prioritize their own safety after that initial search.