ちょっとよろしいですか。

Chotto yoroshii desu ka.

Do you have a moment?

Word for word

“Is a little all right?”

Politeness: Formal

Honorific or humble language, or a set business phrase. Customer service, email, speeches.

When you would say it

Approaching a colleague or boss to ask something.

Worth knowing

More casual: ちょっといいですか。