What is the Golden Hour?
The Golden Hour refers to the time of day when the sun is on the horizon. It's a narrow window where the natural, bluish sunlight changes in character, and becomes that lush sunset/sunrise colour.
Play Filming during the Golden Hour
The great thing about the Golden Hour is that it doesn't cost you anything, other than the effort to set-up and rehearse your shots in advance. Typically you've got about 20 to 60 minutes of that golden light, before the sun disappears or moves too high up on the horizon, and the window closes.
You use the Golden Hour to create a more emotional connection with the audience. There's a reason why we see many romantic shots in TV-series and films with a golden glow. And when I say romantic I mean everything from couples in love, to the iconic shot of the farm, or simply characters going through a fundamental moment.
Check out Aputure's four minute video on the use of the Golden Hour. Here you'll get plenty of great examples from movies. If you feel inspired after this, go out and try for yourself. Practice makes perfect. Find your location's golden window and head out there.