Hi Ihor,
* Ihor Radchenko <yantar92@gmail.com> [2022-05-31; 13:01]:
> Gregor Zattler <grfz@gmx.de> writes:
>
>> Now I realized, that even after quitting and restarting
>> Emacs, I cannot insert a timestamp, I get the following
>> error message:
>>
>> org-parse-time-string: Not an Org time string: [20zznn22-05-30 Mo 11:34]
>>
>> And then there is a dangling
>>
>> CLOCK:
>>
>> line without timestamps at the expected line in my org file.
>>
>> It took a while till I realized that there was a corrupted
>> timestamp in my org file a few clock lines below.
>>
>> It would be helpful, if the message contained the file name
>> and probably even the line number.
>
> Could you please create an example file and detail the steps how you got
> the error?

Please see the attached test.org and call Emacs like so:


/usr/local/bin/emacs-29.0.50 -Q -L ~/src/org-mode/lisp /tmp/test.org --eval '(switch-to-buffer "test.org")' -f org-clock-in