Do the ocean carriers have any control over how long empty cargo containers sit around? I seriously doubt they want to hang around any longer than they need to.
7 Days IIRC. Then they charge demurrage (I don’t recall the rate) beyond the 7 days.
Just another thought for you. Often the consignee’s would use the inbound freight containers loaded with their product as warehouses that often extended their allocated time for those shipping containers. Sometimes as much as a month. They then turned them to the truckers to return, and the truckers would get billed the demurrage. Of course they never would pay, and the shipper, a valued customer got off scot free. The shipping company would eat the demurrage rather than lose the shipper/consignee.