I think the landscape has shifted since the US rules were last changed in 2007. It was awful for pretty much everything that needed to be timezone aware and not

I think the landscape has shifted since the US rules were last changed in 2007. It was awful for pretty much everything that needed to be timezone aware and not just show some local time to a user. Dates & times were not yet even part of standard C++ (some support started in C++11). Boost got your part of the way there, but it's IANA timezone db support was thin. (It could handle current timezones, but not historical or future). I think MS even support IANA timezone db support on Windows somewhere. Windows' ability to handle historical timezone changes was also pretty limited, and the actually history provided was pretty slim. While I have no doubt should the DST change be made permanent will cause all sorts of issues with software (I mean, there's plenty of software, especially in embedded that still doesn't take into account the 2007 change), I personally welcome the end of a twice yearly switch. Which direction, I don't really care. I just want the switching to end.