I would like the progress bar along the top to be based on working hours

The little progress bar on the top that shows you how far through the week you are is great - except that it feels unrealistic because it shows I still have 30% of my day left at 5pm, and that I've burnt through 30% of my day when I wake up at 8am.

It'd be a nice little feature to be able to set working hours (ie 10am to 6pm) and have the bar scale on that. If it's between hours (ie 11pm), it would just sit at the point between days.

Alternatively, it could represent off-work hours with a different color, ie keep showing 24 hour bars, but have 6pm to 10am be dark grey instead of light grey.

Thank you,

Todd