In a followup to that tweet, he said the launch is in about 8 hours which puts it at around midnight Eastern, I think.
Mac mini (M2 Pro/32GB/2TB), Intel NUC10i5FNH w/ESXi 7.0,
iPhone 15 Pro Max (256GB), iPad Pro 12.9" (5th gen, M1/16GB/1TB)
41mm Watch Series 9 (Aluminum), TV 4K (3rd gen), TV 4K (1st gen)