I have a scheduled report in Contact Center that’s been emailed monthly to a manager for years, the prebuilt Agent Summary report, and this week I need to know, for certain, what some of this means. 

What is ACD time? 
What are the units of time? Seconds? 
Obligatory rhetorical question...why isn’t this data provided in human-readable units? 

Can anyone explain what these last two columns are about? Can an agent really be available for 100.45025271559500 percent? I mean, seriously…