暦通りですか?(こよみどおりですか?)/カレンダー通りですか?
↑Have you ever heard this Japanese phrase?
If you live in Japan, you might often hear that just before starting a vacation.
This question means "What's your day off during summer/winter vacation? ,Or do you have to work follow the calendar/your company's calendar?"
A lot of workers in Japan are off Saturday and Sunday, but not all workers are off Saturday and Sunday so even if you ask this question to someone and the person said "yes", you don't know when the person is off.