Usually the time on Music Farm's website or tickets is the door opening time. Usually 630 or 730 according to show time. Most of the time the headliner goes on between 830 and 10 so that they are done by midnight or earlier. As far as to get in the doors, that's your preference. If it's a very popular band and sold out, and the weather is good, people will start lining up in the afternoon
If you're asking what time to line up before the doors open for a show, I guess that's a personal preference. I believe most venues open doors about an hour or so before the scheduled show. Check with the Farm for more precise times.
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