System.Time.Clock Design Issues

[Ashley Yakeley]

In article <4201AEFA.6070400 at cl.cam.ac.uk>,
 Ben Rudiak-Gould <Benjamin.Rudiak-Gould at cl.cam.ac.uk> wrote:

>     * time_t is TAI (atomic seconds since TAI epoch) and gmtime returns 
> UTC (with leap seconds)
> 
>     * time_t is UTC (atomic seconds since UTC epoch) and gmtime returns 
> UTC (with leap seconds)

I don't understand. What actual number does gmtime return in each case?

-- 
Ashley Yakeley, Seattle WA