Yes always the 24 hours from when u get the car.
No it's not. When you're at the car you're renting it for a 24-hour. And the time starts when you pick it up. For example, if you pick up the car at 10:00 a.m. you have till 10:00 a.m. the following day to return the car. If you keep it longer you will start to accrue additional charges.
Sorry nidea
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