Function view 

pub fn view(
    all: &[Entry],
    projects: &[Project],
    sessions_by_hand: &dyn Fn(&str) -> bool,
    period: &str,
    anchor: Date,
    project: Option<&str>,
    default_rate: f64,
    today: Date,
    tr: &Translator,
) -> TimeView

What the Time page shows for period around anchor, every project or one.