Can you work overtime, or at nightshifts or weekends? / How flexible are your timings?
It is crucial that you give straightforward answers. Working overtime or in shifts are situational expectations, if the need arises. Working extra to meet targets or clients demands is normal.
You must be clear with the job description as some jobs may require working in shifts due to international business environment. Time flexibility is necessary sometimes, but you should keep in mind your other priorities as well.