A vivid description of a particular time (e.g., morning, evening, night, day, season, etc.).
Here is an example of chronographia from Shakespeare's Romeo and Juliet:
The grey-eyed morn smiles on the frowning night,
Chequering the eastern clouds with streaks of light,
And flecked darkness like a drunkard reels
From forth day's path and Titan's fiery wheels.