[Datetime-SIG] Local time disambiguation proposal

[Alexander Belopolsky]

On Tue, Aug 4, 2015 at 2:14 AM, Tim Peters <tim.peters at gmail.com> wrote:
> """
> The value of "first" will be ignored in all operations except those
> that involve conversion between timezones.
> """
>
> "Involve" is vague. Subtraction and comparison can "involve"
> conversion to UTC, at least conceptually, when two datetimes don't
> share a tzinfo member.

I tried to address this in
<https://github.com/abalkin/ltdf/commit/9cb251c7286cf0ad712fc911228c2af9cb95897e>.