FWIW, in timetables, 24:00 is used for arrivals, and 0:00 is used for departures. In a similar way, one could establish a protocol to use 24:00 only for _ending_ times, and in all other cases 0:00. Max Wyss. __________________________ >As every day both starts and ends with midnight, the two notations 00:00 >and 24:00 are available to distinguish the two midnights that can be >associated with one date. This means that the following two notations refer >to exactly the same point in time: >1995-02-04 24:00 = 1995-02-05 00:00 >In case an unambiguous representation of time is required, 00:00 is usually >the preferred notation for midnight and not 24:00. Digital clocks display >00:00 and not 24:00.