Time zone changes from version 2006d2 to 2006f1:
Date : Saturday May 6, 2006 1:45 CDT
File : 2006f1.txt

* The conclusion in version 2006d2 that Nicaragua would apply
DST this year was confirmed, now we have a source saying that
Nicaragua will leave DST 30.th. of September 2006, and since
this coincides with Guatemala reported as 1.st. of October
at 0:00, I will set it at that date with 2:00 as the end time.

http://www.elnuevodiario.com.ni/2006/05/01/nacionales/18410:

Old End rule: Last Sunday of August 2006 at 2:00 (guessed)
New End rule: First Sunday of October at 2:00 (guessed!)

* Encouraged by the consideration that Guatemala and Nicaragua
applied DST, apparently Honduras decided to apply it too, 
this Sunday 7.th. of May at 0:00:

http://ar.news.yahoo.com/060503/4/qmx7.html

I would take this with more than a grain of salt, but have decided
to put the change for the time being, we will see if they follow
through on this. The end time will be 4 months later according 
to the article, I put it as Last Sunday of August at 0:00, although
any guess at this point is valid.

Start Rule: First Sunday of May at 0:00
End Rule: Last Sunday of August at 0:00 (guessed)
Why do I doubt it, see this:

* There are reports that El Salvador will apply DST this weekend, 
http://www.worldtimezone.com/dst_news/dst_news_elsalvador01.html
However this article seems to indicate that the change has not been
decided definitely yet, and awaits to see if Honduras implements 
its own DST:
http://www.laprensagrafica.com/lodeldia/883.asp
... it has the interesting claim that Honduras changed the same time 
as Guatemala and Nicaragua.

At the moment I will not put DST for El Salvador, although I presume
they will, also because the "two weeks postponing" was just a loose
formulation from the Finance Ministry, so we wouldn't know when to
put it anyhow.

* The DST in Guatemala is reported to end the 30.th. of
September at 24 hours, or really 1.st. of October at 0:00:
http://www.deguate.com/cgi-bin/noticias/print.pl?article=7134

Old Start rule: 30 April at 0:00
New Start rule: Last Sunday of April at 0:00

Old End rule: Saturday 30 September at 0:00
New End rule: First Sunday of October at 0:00 (1.Oct 2006)

* Apparently there hasn't been any more news about the ideas of 
putting Philippines on DST.

Regards, Jesper Nørgaard Welen

GMT = Greenwich Mean Time
DST = Daylight Saving Time
WTE = World Time Explorer

World Time Explorer 1.8:
http://www.worldtimeexplorer.com/index.html
e-mail: support@worldtimeexplorer.com
this text: http://www.worldtimeexplorer.com/2006f1.txt
... see also http://www.worldtimeexplorer.com/2006d2.txt

TZ Database:
http://www.twinsun.com/tz/tz-link.htm
ftp://elsie.nci.nih.gov/pub