Re: date without time

[Paul Eggert]

On 2024-08-02 01:42, Bruno Haible wrote:
> A more intelligent programmer will answer it with "A day is a period of
> 23 or 24 or 25 hours, going from 00:00 to 24:00 of each date"

The TZDB timezones don't always fit that paradigm exactly. In Samoa, the 
"day" 1892-07-04 was a period of 48 hours, because they moved the clock 
back 24 hours at midnight so that visiting Americans could celebrate an 
double-length Fourth of July. This has been called "a masterpiece of 
diplomatic flattery".

Something similar happened in Kwajalein, where 1969-09-30 lasted 47 
hours. Conversely, 1993-08-21 lasted zero hours in Kwajalein, as they 
advanced the clock 24 hours at midnight.

The TZDB timezone data handle both the Samoa and the Kwajalein cases, 
and glibc supports that.