[tz] Greetings from Mongolia

Paul Eggert eggert at cs.ucla.edu
Sat Jul 4 18:35:06 UTC 2015

Matt Johnson wrote:
> Oracle uses the IANA data.  It’s currently only Microsoft that doesn’t – at least not everywhere.

I think HP-UX is in a similar boat.  That is, although HP-UX uses the IANA tz 
data, it also has a proprietary time zone database called tztab, originally 
developed independently from the tz project.  As I understand things, HP 
continues to maintain tztab for backward-compatibility reasons, and there are 
mappings between tztab and tz names.


tztab(4) man page for HP-UX 

HP-UX 11i Java - Timezone Problem with Customized tztab(4) Entry 

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