[tz] Transitions after those included in zoneinfo binaries?

Paul Eggert eggert at cs.ucla.edu
Wed Dec 20 22:47:42 UTC 2017

On 12/20/2017 12:21 PM, Random832 wrote:
> I noticed that the current version of glibc shipping in Ubuntu fails in 2038 - for all later dates it uses the offset of the last transition as of December 31, 2038 (which is not the 32-bit limit - is that the point that zic stops putting explicit transitions in the 64-bit data by default?)

No, it appears to be a bug in glibc's implementation of localtime and 
related functions. The zic-generated files are fine, but 64-bit glibc 
mishandles timestamps starting in the year 2039 (it handles the year 
2038 correctly). Thanks for reporting the problem: I filed a glibc bug 
report here.


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