Do any of you know if ACC game time announcements have a similar time-line as Pac-12 had, with times being announced either 6 or 12 days before each game (for the games that don't already have times announced)?

Yes it's basically the same 12 day selection for most games with ESPN having the right to put a number of weekends on hold for a 6 day selection. Hoping in practice more games are announced at 12 days since there are not 2 different network entities (Fox and ESPN for pac 12) that have the right to put games on hold.