bug#54756: 28.1; faulty date interpretation

[Peter Dyballa]

> Am 7.4.2022 um 13:24 schrieb Lars Ingebrigtsen <larsi@gnus.org>:
> 
> I get exactly the same in Emacs 28.1.

That's not surprising, since you put the date in US American notation into 
diary.
> 
> I never use diary, so I don't know whether this is what's expected or
> not. Could you explain what you expected to see here, or whether you're
> seeing something else in Emacs 28.1?

In GNU Emacs 27 and before it worked to switch to European date format:

        /Library/Application Support/Emacs/site-init.el:23:(defvar 
european-calendar-style t)
        /Library/Application Support/Emacs/site-init.el:72:(setq 
european-calendar-style t)

which now does not get loaded, as *Messages* shows:

        Um 2022-04-06 21:52:54 Uhr wird /Library/Application 
Support/Emacs/site-start.el geladen
        /Library/Application Support/Emacs/site-start.el
        (Tipp von Kai G) Lade jetzt: cal-loaddefs
        site-start.el Zeile 497
        (Tipp von Kai G) Lade jetzt: ~/.emacs
        Sind jetzt in PETEs .emacs
        Zeile  44 .emacs, der Emacs-Typ ist 28
        It’s not XEmacs
        It’s GNU Emacs
        Zeile 228 .emacs
        Zeile 234 .emacs, desktop-dirname ist ~/.emacs.d/ und gesichert wird in 
emacs-28.desktop-mac
        ../../Library/Application Support/Emacs/session.el: Warning: ‘incf’ is 
an obsolete alias (as of 27.1); use ‘cl-incf’ instead. [2 times]
        ../../Library/Application Support/Emacs/session.el: Warning: ‘decf’ is 
an obsolete alias (as of 27.1); use ‘cl-decf’ instead.
        ../../Library/Application Support/Emacs/session.el: Warning: ‘incf’ is 
an obsolete alias (as of 27.1); use ‘cl-incf’ instead.
        ../../Library/Application Support/Emacs/session.el: Warning: ‘decf’ is 
an obsolete alias (as of 27.1); use ‘cl-decf’ instead.
        ../../Library/Application Support/Emacs/session.el: Warning: ‘incf’ is 
an obsolete alias (as of 27.1); use ‘cl-incf’ instead. [4 times]
        Zeile 254 .emacs
        Zeile 259 .emacs, session-save-file ist ~/.emacs.d/session-28-mac
        Zeile 261 .emacs, custom-file ist ~/.emacs-Abrichtung-28.el
        (Tipp von Kai G) Lade jetzt: ~/.emacs-Abrichtung-28.el
        Loading /Users/pete/.emacs-Abrichtung-28.el (source)...
        Custom Set Variables 28
        (Tipp von Kai G) Lade jetzt: time
        Loading time...done
        (Tipp von Kai G) Lade jetzt: midnight
        Loading midnight...done
        Custom Set Faces 28
        Loading /Users/pete/.emacs-Abrichtung-28.el (source)...done
        (Tipp von Kai G) Lade jetzt: ~/.emacs_mac
        Loading /Users/pete/.emacs_mac...
         AppKit-Zeile  19 .emacs_mac
         AppKit-Zeile  23 .emacs_mac
         Carbon/AppKit Emacs-Zeile  56 .emacs_mac
        (Tipp von Kai G) Lade jetzt: /Library/Application 
Support/Emacs/site-start.el
        Loading /Library/Application Support/Emacs/site-start.el (source)...
        Um 2022-04-06 21:52:54 Uhr wird /Library/Application 
Support/Emacs/site-start.el geladen
        /Library/Application Support/Emacs/site-start.el
        (Tipp von Kai G) Lade jetzt: hol-loaddefs
        Marking holidays...done
        (Tipp von Kai G) Lade jetzt: diary-loaddefs
        Marking diary entries...done
        Preparing diary...done
        Looking up holidays...done
        site-start.el Zeile 497
        Loading /Library/Application Support/Emacs/site-start.el (source)...done

site-start.el has:

        /Library/Application Support/Emacs/site-start.el:151:(setq 
european-calendar-style t)
        /Library/Application Support/Emacs/site-start.el:164:;(setq 
calendar-date-style 'european)      ; 'iso gips auch
        /Library/Application 
Support/Emacs/site-start.el:165:;(calendar-set-date-style 'european)
 
I'd presume that dumping is a problem:

        Warning: Change in load-path due to site-init will be lost after dumping

which I better should avoid:

        calendar-date-style is a variable defined in ‘calendar.el’.
        
        Its value is ‘american’


Activating "(setq calendar-date-style 'european)" brings:

        calendar-date-style is a variable defined in ‘calendar.el’.
        
        Its value is ‘european’
        Original value was ‘american’

Now I get in *Fancy Diary Entries* only:

        Sunrise 06 Uhr 50, sunset 20 Uhr 05 at Friedberg (13:15 hrs daylight)

and on 4. of June:

        Sunrise 05 Uhr 19, sunset 21 Uhr 28 at Friedberg (16:08 hrs daylight)
        Geburt von Karl Valentin in München-Au als Valentin Ludwig Fey 160 
Jahren
        Tod von Rupert Neville Hine

So it's more my bug - sorry!

--
Greetings

  Pete

There are very few jobs that actually require a penis or vagina. All other jobs 
should be open to everybody.
                                – Florynce Kennedy