Translation:How long can a person live without oil?
Quanto = how long? Is the element of time implied? I feel like a direct translation in English would be too vague to work, so I'm curious.
"Quanto" refers to quantity in general, and it can be used to refer to time ("tra quanto passa l'autobus?" - "how long till the next bus?"), length ("quanto è distante?" - "how far is it?"), weight ("quanto pesa?" - "how much does it weigh?"), and so on.