Alexandria was struck on July 11

At sunrise on Tuesday, the eleventh of July 1882, the British fleet began firing its missiles at Alexandria. One of its castles responded after the tenth salvo, and the other castles responded after the fifteenth salvo. The firing of the fleet on the city continued until five o'clock, and did not stop. Exactly, except at sunset.
The fleet commander had responded to the state agents in Alexandria, reassuring them when they asked him about the danger of remaining in Alexandria after warning it of attack. He assured them that he would target the castles with his missiles alone, so there was no fear for any of the city's residents. However, the shells struck the European and Egyptian dwellings randomly, and the Parisian newspaper El Tan said at the time: "The ship shells hit the European dwellings, which are a long way from the battle line, and one of them landed in the European Hospital, where nuns and orphans were housed, and it had flags of the Red Cross on it. Fortunately, the shell did not explode." The British confirmed that they did not see any flag on the hospital..."
Abbas Mahmoud Al-Akkad