Paul Eggert wrote:
From: Doug Royer [SMTP:doug@home.royer.com] Sent: Thursday, February 03, 2000 6:47 PM
The timezones.external@software.com list is for public discussion of timezone information.
How does that mailing list's charter differ from that of tz@elsie.nci.nih.gov, which is a list for public discussion of time zone information that has been in use since 1986?
I visited www.software.com, but found no discussion of the new list. How does one join, or view its message archive?
It was at the end of the message: ----------------------------------------------------------------- To subscribe, send mail to timezones.external-request@software.com with 'subscribe' in the body of the message. -----------------------------------------------------------------
IANA as part of the IETF is looking into administrating the names of world wide time zones.
How and why will this administration differ from the process already in place for the existing time zone database?
It will control the names of the timezones in RFC-2445 format.
1) Port the government database and 'zic' (Zone Information Compiler) to other OS's and have it also provide the data in VTIMEZONE format. Most UNIX's use the government database format and the zic compiler (man zic).
On 1998-07-16 Antoine Leca <Antoine.Leca@renault.fr> wrote that he was implementing (1); you might ask him how far he got.
I send email and ask. So far it only runs on UNIX (that I have seen) and does not producde RFC-2445 format.
2) Convert the government database into VTIMEZONE records for IANA to administer.
Isn't conversion automatic?
Its not automatic until the code is written. Then someone at IANA will keep updateing the information from the government data or from direct input.
If so, why would two databases need to be administered separately? One database should be generated automatically from the other.
Could be. However IANA will acceppt the responsability. Where as it looks to me if the government data is not authoritive. The administration will also include (in time) servers that can serve out VTIMEZONE information real time to calendar tools via CAP (Calendar Access Protocol). draft-ietf-calsch-cap-<version>.txt
And if someone want to volunteer - make a converter to go from VTIMEZONE format to zic input format to keep the databases in sync.
Why would this be necessary, if conversion is automatic?
Point me at something automatic that is doing this.
FYI, here is a brief summary of existing sources for time zone data: http://www.twinsun.com/tz/tz-link.htm
And here is a copy of the tz mailing list archive: ftp://elsie.nci.nih.gov/pub/tzarchive.gz
I have already looked at those. I could not find anything that supports RFC-2445. -Doug