Noun

Twilight

https://www.merriam-webster.com/dictionary/gloaming

Walk with me by Nevada Public Radio

“in the gloaming, the three boiler towers rise from a field of mirrors that glimmer kike an aricifial lake”

When I first read this i thought the author was referring the water glowing but with the definition i realized that gloaming referred to the time of day. Using the definition i can understand that it was twilight during this scene.