Talk:Zoneinfo

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[edit] AIX?

I'm questioning AIX being listed in the "Use in software systems" section. IBM has been unable to compile correct zoneinfo files for years. We found that out while testing the US 2007 DST patches and the more recent Australian patches. They are aware of it, but it is pretty obvious that nobody is using their Olson data.

This is what IBM has to say about it:

"Some applications rely on timezone information from zoneinfo files in /usr/share/lib/zoneinfo. However we are not aware of any common applications that use these. At this time updated zoneinfo files are not available."

And here, they come right out and say that as far as the OS is concerned, DST is hard coded:

"If the Daylight Savings Time option is enabled, the default in AIX is for the system time to move forward 1 hour (to DST) at 2:00am the first Sunday in April, and move back one hour (to Standard Time) at 2:00 a.m. on the last Sunday in October. Starting in 2007 this switch occurs on the second Sunday in March and ends the first Sunday in November. The default is hard coded and is not stored in any user accessible file..."

I respectfully suggest that a parenthetical note be added such as "(includes zdump and zic utilties, but the OS itself does not use the zoneinfo data)" or AIX simply be removed from this page entirely.

Thoughts?

--Bob 192.193.221.202 (talk) 13:05, 18 March 2008 (UTC)

Yep, thanks... I added this info (as a separate bullet point with refs. --Dfred (talk) 16:57, 18 March 2008 (UTC)
MySQL uses zoneinfo under AIX. I'll add that too. One citation suffices from IBM, and one for MySQL. Eubulides (talk) 17:22, 18 March 2008 (UTC)