[tz] Reason for 24:00

[Guy Harris]

On May 3, 2019, at 5:32 PM, Paul Eggert <eggert at cs.ucla.edu> wrote:

> In a few cases (e.g., "24:00 the last Saturday in March") it's not
> that easy to switch between 0 and 24, so we might use 24:00 even if
> the original source uses a more circumlocutory form with 00:00.

I.e., "24:00 the last Saturday in March" could be "00:00 the last Sunday in March" in some years and "00:00 the first day of April" in other years?