Usually 2-3 weeks from my experience, for an event of moderate complexity. They have to contract for security fencing, logistics with local LE, planning for transfer of support materiel, site survey, local hospital coordination and medical support, scheduling a TFR with FAA, hotel accommodations, etc.

There are a lot more details, and they have the drill down. Indoor events are a bit easier because you can control ingress/egress points and possibly can be set up in under 2 weeks.

Something in urban areas is far more complex.

In DC, when POTUS is to make a published land move, they will weld the manhole covers shut in advance of motorcade. Also remove mailboxes, trash cans, etc. I don't know if they do it for events like Butler.