"17.35 Shot setup begins.
18.07 Loading final protons.
18.20 Loading pbars.
18.48 Preparing to ramp.
18.50 Ramping.
18.52 Jacking.
18.53 Squeezing.
18.56 Initiating collisions.
18.57 Ramping."

(From Fermilab's Main Control Room logbook today)