[thaumasiotes]

> A feature I would like from operating systems is to tell me the true time during leap seconds. E.g. 23:59:59, 23:59:60, 00:00:00 Instead of repeating 23:59:59 or just pretending the leap second never happens.

In past discussions of leap seconds, it came out that the POSIX standard specifies that no such second as 23:59:60 can exist (by specifying that "one day" consists of exactly 86400 seconds). As I understand things, this is why the erroneous behavior you mention is done.

It is not clear to me why, for the sake of complying with a standard we know to be wrong, we report false information and otherwise do things that we also know are wrong. The obvious approach would seem to be to either change the standard or just ignore it.