On 29.06.2010 16:11 CE(S)T, yoshito_umaoka@us.ibm.com wrote:
These are well defined in the man page of zic. Download tzcodeC.tar.gz (C is a version such as 2010j) from ftp://elsie.nci.nih.gov/pub/ and read docs included in the distribution.
Thank you. That's indeed a very complete definition of the files. I just didn't see it at first.
Strictly speaking, you cannot expect DST start and end are always paired within a single year. Also, some rules used by the tzdatabasemight not be directly mapped to Windows/.NET style rule.
I see. I have already found definitions of double daylight saving times and other weird stuff. So I've dropped my hope to use TimeZoneInfo and am now going to use custom data structures and algorithms to use the data. (See other thread.) -- Yves Goergen "LonelyPixel" <nospam.list@unclassified.de> Visit my web laboratory at http://beta.unclassified.de