[Development] How does mktime() handle DST transitions ?

Kevin Kofler kevin.kofler at chello.at
Thu Nov 5 16:15:00 CET 2015

André Somers wrote:
> Actually, you are right about the sync in the EU (for all clocks) and
> about the hour that is duplicated depending on the time zone, but I
> think you are off on the hour it happens. In CET it is 2:mm that is
> duplicated, in GMT and WET it is 1:mm and in finland (EET) it is 3:mm
> that is duplicated.
> See
> http://www.timeanddate.com/news/time/europe-dst-end-2015.html

You're of course right.

Sorry, I should have remembered the exact time, being up at that time more 
often than not and also having to deal with it in programming at times. 
Looks like I was just too tired when I wrote this.

> Interesting, I did not know that the summertime adjustment is
> synchronized in the EU. Interesting little factoid :-)

Yes, and I felt it important to point this out, which is why I rushed to 
reply (and then screwed it up).

Sorry for the misinformation,
        Kevin Kofler

More information about the Development mailing list