What time do i start on Sunday at 4:15 or the time my sort manager told me which is Chris snow

Do you have the office number so i can call at find out or talk to somebody in the office in the warehouse atleast not the 850 number none of them are their so they can't help me. I'm talking about the office in the actual warehouse office

The sign out front says Twilight: Unload 4:15 Load 4:30. Mid Sort: unload 9:15 and load side 9:30 6/30/19 I do not have any contact numbers, I'm linehaul and as far as I know, no one is here now.