DV
I have seen a railway timetable somewhere which shows the same train at the start of the day and end of the day, as it traverses midnight. The column is essentially duplicated apart from that it calls at a particular station at 00:00 at the start of the day but at 24:00 at the end of the day.
At larger stations there aren't any trains at midnight, they are deliberately a timetabled 23:59 to avoid confusion but may leave a minute late.
Of course in broadcasting (and in other industries too) the day goes beyond 24:00 up to 30:00.
Back on topic and Sadiq Khan was inaugurated as Mayor on Sunday as planned in the end anyway so the extra day of Boris didn't happen.
At larger stations there aren't any trains at midnight, they are deliberately a timetabled 23:59 to avoid confusion but may leave a minute late.
Of course in broadcasting (and in other industries too) the day goes beyond 24:00 up to 30:00.
Back on topic and Sadiq Khan was inaugurated as Mayor on Sunday as planned in the end anyway so the extra day of Boris didn't happen.