On 8 Oct 2016, at 20:46, Carsten Larsen <cs@innolan.dk> wrote:

The Epoch difference is easy to calculate. 2 leap years and 6 normal. No leap seconds:

Posix time-since-the-epoch ignores leap seconds.   The epoch is “approximately” midnight at the beginning of 1970.   (Currently 26 seconds out.)

jch