joemarshall opened a new issue, #42157: URL: https://github.com/apache/arrow/issues/42157
### Describe the bug, including details regarding any error messages, version, and platform. Since 2018, there have been two options for binary zoneinfo files - the old 'fat' format which manually lists all transitions between daylight savings and normal time, and the newer 'slim' format which includes logic to describe transitions. The new format is both smaller, and able to deal with daylight savings further into the future. The current library that is vendored in to arrow doesn't support slim format. This is a risk as a) in future distros will probably transition (and other things that use timezones like python tzdata module already have), b) on embedded platforms and emscripten the smaller format is preferable, c) the smaller format becomes increasingly desirable as time goes on, particularly as we head towards 2038, as it works better with 32 bit end of Unix epoch in 2038. The ideal is probably a fix in the upstream date library, but I thought it ought to be highlighted here also. ### Component(s) C++ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
