Function mode 

pub fn mode(
    windows: &[AdminWindow],
    time_off: &[TimeOff],
    overrides: &Overrides,
    blocks: &Blocks,
    now: &Zoned,
) -> Mode

What now is for, and until when (docs/areas.md): sleep first (the night from winding down to waking, a nap), then meals, then the hours: “Done for today” is leisure, “A little longer” and “Work now” are work, time off is leisure, then working and admin hours; every other time is leisure. No working or admin hours at all: everything comes (Time::Any), meals and sleep aside. windows are the week’s hours of work and admin (Config::week_hours): an older Sioul’s free time is left aside.