https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114645
--- Comment #7 from Hristo Venev <hristo at venev dot name> --- I was actually trying to fix a bug in an existing application that I didn't write that is using std::chrono::current_zone() under the assumption that it returns some good approximation of what should be considered the "local" time zone. I guess I need to open a bug with the application. Still, as I said previously, the other time zone libraries I checked attempt to handle $TZ.