Learn Farsi: اضافه‌کار قبل از شیفت شبه. - The overtime is before the night shift.

It's attached to the very last word! The formal verb for "is" is است (ast). In colloquial Tehrani, this frequently shrinks down to just an ـه (-e) sound and attaches to the noun before it. So, شب است (shab ast) becomes شبه (shab-e).

How do we connect the words to say "night shift"?

By using the invisible connector called the ezafe. It is literally "shift-of night," pronounced شیفتِ شب (shift-e shab). Remember that Farsi usually puts the main noun first, followed by the word that describes it.

Is اضافه‌کار considered a single word here?

Yes, it's a compound noun meaning "overtime." It's formed by combining اضافه (ezafe), meaning "extra" or "addition," and کار (kar), meaning "work."

Does شبه look like another common Farsi word?

You might be thinking of شبیه (shabih), which means "resembling" or "like." Although they share similar letters, they sound completely different. The colloquial "is night" here is pronounced shabe (ending with a short "e" sound), while the word for "resembling" ends in a long "ee" sound.