Twilight shift usually starts between 5 to 6pm. It varies by volume and location. And I have never heard of anything called "precharge" a day in my life.
Yeah twilight starts at 5 today. My hub has precharge where it's basically when a few employees come in early to make sure the trucks that are getting backed up get loaded
We have one person on each belt come in 10 minutes early to do set up. Feeder spotters set up the trailers. Car wash take care of package cars. Twi starts anywhere from 16:45 to 17:45. Different time for every day of he week.