If a pub calls last orders at 10,30 pm and allows 30 minutes drinking up time should the pub displa?

if a pub calls last orders at 10,30 pm and allows 30 minutes drinking up time should the pub display its closing time as10.30 the time of last orders

if a pub calls last orders at 10,30 pm and allows 30 minutes drinking up time should the pub display its closing time as10.30 the time of last orders or should it display 11.00pm as closing time.

or:if a pub calls last orders at 10,30 pm and allows 30 minutes drinking up time should the pub display its closing time as10.30 the time of last orders or should it display 11.00pm as closing time.

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