I'm going to a wedding with a huge gap. Ceremony at 11am at a church and the reception starts at 5pm at a country club type venue. I have no clue what the official dress code is for the reception but I presume "generally formal." I've never been to a split wedding like this. Can I wear the same dress to the ceremony as the reception or am I going to have to change? This is an out of town wedding and I want to just bring a carry-on so the less I have to pack the better.