How do I communicate between these BPs?

Hi there! I just followed a tutorial on a simple day/night cycle, (This one to be specific Unreal Engine 4: How to Make a Day/Night Cycle! - YouTube) however I cannot seem to take the information it produces (i.e. the hour or day) and send it to my HUD BP so that it updates the clock. The sun moves around and I see that my hour variable does indeed update per tick, but the clock on the HUD just sits at 0. I’ve tried casting to the “Sky BP” that I use but I have no idea what “object” i need to use in order to make the connection work. I appreciate any advice!

Hi, I would recommend to watch this Blueprint Communication training stream from Zak Parrish.
It will help to give you a better understanding on how the BP’s work and what you can do with it.

You can find the video here: Blueprint Communications | Live Training | Unreal Engine - YouTube
(Be sure to grab some snacks and drinks, it’s a 2.5 hour video, and worth it).

Everything is working great now! Terrific recommendation, thank you!