你要是在美国租一天的车， 完还90分钟，要收你一天的钱。你以为付一个半钟头的钱就完了？

Do late-return fees apply? 
Answer:  Vehicles are rented on a daily (24-hour) basis. There is a 29-minute grace period for returns. After 30 minutes late, hourly car rate charges and taxes may apply. After 90 minutes late, full-day late charges and taxes may apply. After 7 hours late, if you didn't call to extend your rental, an additional $10/day late fee applies. There is no grace period for rental fees, surcharges and optional equipment or protections charges. Full-day late charges will apply for these items.

--budget.com