I am a bridesmaid in a wedding this weekend and I'm trying to figure out how long I need to stay. It's in the town that I live in, but it's extremely time consuming and my fiancee was not invited to the wedding (I know this is rude - the bride and groom don't like him, not that it's an excuse). After I agreed to be a BM, it became clear that he would not be invited to this wedding. I have the rehearsal and dinner on Friday, and getting ready gets started the next morning at 8. The wedding is in the evening, starting at 6pm. Realistically, how late into the wedding itself do I need to be there to have politely fulfilled my duties? Everyone else at the wedding has their SO in tow, so I just don't anticipate this being particularly enjoyable.