Which distress signal is handheld and used during the day?

The correct distress signal that is handheld and specifically designed for daytime use is the floating orange smoke signal. This type of signal produces a bright orange smoke that can be easily seen from a distance, especially against the backdrop of the sky on a sunny day. It is particularly effective because the vibrant color stands out and is recognized universally in distress situations.

In contrast, red flares are more appropriate for night use due to their bright light and visibility in the dark, while electric light signals are also not suitable for daytime use as they may be difficult to see when the sun is out. An orange flag, while it can indicate distress (especially when used in conjunction with other signals), is not classified strictly as a distress signal like the floating orange smoke signal. This makes the floating orange smoke signal the best choice for daytime emergencies on the water.