Dimitry Sibiryakov wrote:

> Max four bytes for time_t? It must be up to 8 because
>sizeof(time_t) == 8 on 64bits platforms.
>

That became obvious even to me when I actually implemented it.

> Do you propose to abandon ISC_DATE?
> Dates before 1970 seem to be in troubles in this encoding...
>

Nope. Negative numbers.