[tz] So, about those LMT offsets

[Guy Harris]

On May 23, 2021, at 3:29 PM, Clive D.W. Feather via tz <tz at iana.org> wrote:

> I haven't looked at the interfaces in question, but if it can't return a
> failure code,

localtime() can return NULL according to C99 and according to the Single UNIX Specification, and *does* return NULL for all times prior to the Epoch on a certain (non-UN*X) platform from Redmond, Washington.