To celebrate the failure of Hungarian Railways (MÁV) to properly switch to DST, here's the famous list of

Falsehoods Programmers Believe About Time

https://gist.github.com/timvisee/fcda9bbdff88d45cc9061606b4b923ca
Falsehoods programmers believe about time, in a single list

Falsehoods programmers believe about time, in a single list - falsehoods-programming-time-list.md

Gist

@buherator Did you see failure to handle DST was also part of the Iberian blackout runup?

They were one hour out on power predictions for 1 1/2 months leading up to it ...

@troed I did not, thanks for the info! I saw the report but never got around to read and understand it - it looks quite a piece!