This is the 14638th most frequent German word.
mittags
"Mittags" means "at noon" or "around midday."
Here, 'mittags' is used as an adverb indicating the regular occurrence of the action ('eating a salad') around noon.
Ich esse mittags oft einen Salat.
I often eat a salad at noon.
Here, 'mittags' functions as a time marker to specify when the action ('shining brightly') takes place.
Mittags scheint die Sonne besonders hell.
The sun shines especially bright at noon.
Here, 'mittags' indicates the time frame for the action ('meeting for coffee').