Hi, I opened a discussion with colleague again, based on your answer. And result is - he think that he is in EST timezone, but in real, it is EDT timezone now (he is in Toronto).
And in the online results it is correct too: - https://duckduckgo.com/?q=convert+EST+time+to+CEST&t=ffab&ia=web It is just hidden... Between what I asked for and what wanted to know. So, it looks tzdata are correct and I got perfectly correct answer to my wrong question... Thank you, you can close this ticket with peace in mind... Have a nice day, Michal Heppler V Mon, Jul 15, 2024 at 08:12:14PM +0100, Adam D. Barratt napsal(a): > On Mon, 2024-07-15 at 15:53 +0200, Michal Heppler wrote: > > I noticed that thew `date -d ...` utility converts time between EST > > and CEST timezone in wrong way. The time is shifted by 1 hour later: > > > > # cat /etc/timezone > > Europe/Prague > > # date -d '7:00AM EST' > > Po 15. července 2024, 14:00:00 CEST > > > > Env. LANG and LC_* does not change result, just not localised: > > > > # date -d '07:00 EST' > > Mon Jul 15 14:00:00 CEST 2024 > > > > The expected time is 13:00 CEST. > > I may be missing something here, but... EST is UTC-0500, and CEST is > UTC+0200. The difference between the two is therefore 7 hours, which is > what the above shows. > > Are you perhaps confusing the meanings of the "S" in each of the > abbreviations? While CEST is Central European Summer Time - i.e. > observing daylight savings - EST is Eastern _Standard_ Time, i.e. _not_ > observing daylight savings. The equivalent of CEST for the Eastern > timezone is EDT. > > Regards, > > Adam -- __________________________________ / Štěstí vzniká jen co by vedlejší \ | produkt - stejně jako koks. | | | \ -- Huxley / ----------------------------------
