Feature summary:

Currently, Toolforge jobs doesn't allow to specify a time zone to run your jobs in, and all jobs are scheduled based on UTC times:

https://wikitech.wikimedia.org/wiki/Help:Toolforge/Running_jobs

If I want a job to run precisely at midnight local time in a time zone with daylight saving time, I have to adapt the jobs twice a year.

Use case(s):

Some talk and discussion pages in the German Wikipedia use daily headers for structuring the topics. A bot is used to add new daily headers at midnight:
https://de.wikipedia.org/w/index.php?title=Spezial%3ABeitr%C3%A4ge&target=WosretBot2&namespace=4&tagfilter=&start=&end=&limit=50

To avoid adding these headers too early or too late, I adapt the job twice a year.