Strongly seconded. I mostly live in the "Day View" and the highly visible "Duration" is completely meaningless to me because it is based solely upon the (also highly visible) Day Start and Day End times. I'd like to be able to customize what that "Duration" value means (e.g. only summing "billable" time would be perfect).

Attached is an image that displays what I'm talking about. All that dark blue tagging is what I call "out of office" (non-billable) time, so it's HIGHLY unhelpful that it's being included in the Duration = 12:11 calculation.

There's a similar feature request here: http://support.manictime.com/forums/222041-feature-requests/suggestions/20519170-exclude-away-time-and-power-off-time-from-statisti

Wouldn't that then be just Active time? Statistics, Computer usage, Active time?

I use a secondary computer for a specific purpose and I'd like to have statistics on how much I used this computer during the week. However, away time and power off time are included in the statistics making the total duration values meaningless. Basically, extend the "Do not track" options to include away time and power off time.

I'm a freelancer - I use my computer for work, as well as everything else. I would like to be able to see my day duration with tags only as 'work' or 'work'+'administration'. Or any other subset/filter.

I also use ManicTime for sleep tracking so it would be nice to see a week of sleep patterns side-by-side.

Same with the 'Attendance' it would be nice if I could consider a day 'attended' if there is a 'work' tag > 1h.

Thanks!