I once set up in the afternoon for a local gig, and returned in the evening ready to start.....only to find a band hauling their gear in as I arrived. Turns out I was 24 hours early.
Your DJ - Mobile DJ The New Forest, Southampton & Hampshire. Toby
https://yourdj.co.uk/
I can beat all of this....I still lived at home, so this must have been a good 25 years ago, but I turned up for a gig a whole year early...