midnight
Return of the sovereigns to Rome , you see . Date of the telegram , Rome , November 24 , ten minutes before twenty-three o'clock . The telegram seems to say , `` The Sovereigns and the Royal Children expect themselves at Rome tomorrow at fifty-one minutes after fifteen o'clock . '' I do not know about Italian time , but I judge it begins at midnight and runs through the twenty-four hours without breaking bulk . In the following ad , the theaters open at half-past twenty . If these are not matinees , 20.30 must mean 8.30 P.M. , by my reckoning . Spettacolli del di 25 TEATRO DELLA PERGOLA -- -LRB- Ore 20,30 -RRB- -- Opera .