two o'clock on Monday
After all , it was hardly fair to bother her Grace with technicalities . `` I hope you can undertake this commission , '' she said pleadingly . `` I shall be delighted , '' said Paul . `` I am rather busy just now , but I could begin at two o'clock on Monday . '' `` Excellent , '' said the Duchess . `` Till Monday , then . '' And Paul , still clutching the tooth-paste , conducted her to her carriage .