Function end_of_next_workday 

pub fn end_of_next_workday(
    work: &[AdminWindow],
    time_off: &[TimeOff],
    now: &Zoned,
) -> Zoned

When “Work now” ends: once the next working day is over, today’s while its working hours are not; past any time off. Without working hours, at midnight. work are the working hours only.