The "through" here eliminates any doubt that Wednesday is also a working day. It makes it explicitly inclusive. In AmE, we might also say "Saturday to Wednesday" in this situation.
"Teaching in ... typically entails working Saturday through Wednesday."
Thank you,
According to Cambridge Dictionaries Online, through preposition - US from one time until another time: The store is open Monday through Friday.
Question: What might the equivalent in British version be?
The "through" here eliminates any doubt that Wednesday is also a working day. It makes it explicitly inclusive. In AmE, we might also say "Saturday to Wednesday" in this situation.
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I work (from) Saturday to Wednesday.
I work every day except Thursdays and Fridays.
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