[LEAPSECS] Coming of age in the solar system

[M. Warner Losh]

In message: <20100905223943.GA19793 at ucolick.org>
            Steve Allen <sla at ucolick.org> writes:

: On Sun 2010-09-05T12:07:16 -0600, M. Warner Losh hath writ:

: > It is also my belief that leap seconds will continue to not exist.  As

: > Joe Gwinn pointed out, there's two properties of time_t that are

: > stronger than UTC or the underlying time scale: it is assumed to be

: > monotonically increasing and a number of seconds since the epoch

: > formula requires start of day % 86400 == 0.

: 

: Leap seconds will not exist in time_t, ever, that's pretty clear,

: 

: If the broadcast time scale becomes uniform, then it will provide

: "atomic days" of 86400 TAI seconds.  But whether that happens under

: the name UTC or not, there will be a day every year when a cron job in

: the US scheduled at 01:30 happens twice, and a day when a cron job

: scheduled at 02:30 never happens.


Some crons won't do that.

Warner