My wceremony will beign at 7pm. My MOH seems to think that it will "not look nice" if the bridesmaids wear dresses that are not long. The wedding will take place in Maryland in September, it will most definitely be warm if not hot and that sun will not have set a the time of the ceremony. Is there any rule that says that the dresses have to be long if the ceremony is in the evening? I like to follow ettiquette, so I jsut want to know what the rule is. Also the ceremony will take place outside.