Meaning "Saturn's day."
Saturday, novel by Ian McEwan
The Saturdays, novel by Elizabeth Enright
Saturday, opera by Karlheinz Stockhausen from his Licht cycle
The Saturdays, a British girl group
"Saturday's child works hard for a living," nursery rhyme
Saturday Settman (female), one of the septuplets in 2017 film "What Happened to Monday" (AKA: "Seven Sisters")