I'm not one of those photographers who disappears moments after the first dance... I bloody love a party (side note: You Can Call Me Al is my all time favourite wedding disco crowd pleaser!) and love to capture the fun.
I don't like to be too rigid with my finishing time as I generally play it by ear but as a rough guide I tend to stay for around an hour after the first dance (if you're having one) or until I feel like I've got plenty of shots of people throwing some shapes.
If you've got anything planned for later in the evening you'd love included in my shots then let me know!