I just noticed that in the note regarding Zone America/Los_Angeles in the northamerica data file, in addition to specifying that the northern three quarters of Idaho County, Idaho are included in the zone, it also lists Idaho County among the counties that are entirely included. # US Pacific time, represented by Los Angeles # # California, northern Idaho (Benewah, Bonner, Boundary, Clearwater, # Idaho, Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties, # and the northern three-quarters of Idaho county), # most of Nevada, most of Oregon, and Washington Hank W., Austin, Texas, USA
You've spotted one of a number of "minor" comment errors. I believe the official response in the past was something like "don't rely on the comments - they're not meant to be a rigorous treatment of the subject". I still believe they should be fixed whenever possible without overly complicating them. At 2013-12-23 17:47, Hank W. wrote:
I just noticed that in the note regarding Zone America/Los_Angeles in the northamerica data file, in addition to specifying that the northern three quarters of Idaho County, Idaho are included in the zone, it also lists Idaho County among the counties that are entirely included.
# US Pacific time, represented by Los Angeles
#
# California, northern Idaho (Benewah, Bonner, Boundary, Clearwater,
# Idaho, Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties,
# and the northern three-quarters of Idaho county),
# most of Nevada, most of Oregon, and Washington
Hank W., Austin, Texas, USA
-- Alan Mintz <Alan_Mintz+TZ_IANA@Earthlink.net>
...and here's my report from 2012-05-21: I see someone tried to address this last month but it kind of fell flat. The solution seems clear to me, as described here:
In ftp://ftp.iana.org/tz/data/northamerica v8.54 dated 2009-05-17 (the current version), it says"
# US Pacific time, represented by Los Angeles # # California, northern Idaho (Benewah, Bonner, Boundary, Clearwater, # Idaho, Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties, # and the northern three-quarters of Idaho county), # most of Nevada, most of Oregon, and Washington
The first instance of Idaho in the county list (between Clearwater and Kootenai) should be removed since the list ends with "and the northern three-quarters of Idaho county". That is, only the northern 3/4 of the county, not the whole county, is included (assuming that is true).
The dividing line is actually the Salmon River, so I would change the paragraph to: # US Pacific time, represented by Los Angeles # # California, northern Idaho (Benewah, Bonner, Boundary, Clearwater, # Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties, # and the part of Idaho county lying north of the Salmon River), # most of Nevada, most of Oregon, and Washington If we wanted to give the same detail treatment to NV and OR: # US Pacific time, represented by Los Angeles # # - California # - Washington # - Northern Idaho (Benewah, Bonner, Boundary, Clearwater, # Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties, # and the part of Idaho county lying north of the Salmon River) # - Oregon (except for the northern 3/4 of Malheur County) # - Nevada (except for West Wendover) ...and again on 2012-06-08: I'd like to try this once more without it getting buried or expanded into other issues, please. As it's written, the America/Los_Angeles comment in northamerica v8.54 in tzdata release 2012c does not make sense. The simple solution is to remove 7 characters from line 395: < northamerica
northamerica.new
395c395 < # Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties, ---
# Idaho, Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties,
Alternatively, more accuracy could be provided by the following changes: < northamerica
northamerica.new
395,397c395,398 < # Idaho, Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties, < # and the northern three-quarters of Idaho county), < # most of Nevada, most of Oregon, and Washington ---
# Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties, # the towns of Burgdorf and Warren, and the part of Idaho county # lying north of the Salmon River), Nevada (except for West Wendover) # Oregon (except for part of Malheur County), and Washington
AFAIK, this description is completely accurate (though it doesn't reflect unofficial observances in Nevada, which I assume wouldn't be appropriate here). (see http://mm.icann.org/pipermail/tz/2012-June/018083.html for ensuing discussion, which went off on a fine point about Oregon and died). -- Alan Mintz <Alan_Mintz+TZ_IANA@Earthlink.net>
Alan Mintz wrote:
The solution seems clear to me
Thanks for pinging us about this. I pushed the following patch into the experimental repository.
From f9aa3436d82d4cf52e40a7d1a12fef62e9f2c1cc Mon Sep 17 00:00:00 2001 From: Paul Eggert <eggert@cs.ucla.edu> Date: Tue, 24 Dec 2013 17:50:24 -0800 Subject: [PATCH] Give the boundary of the US Pacific time zone more accurately.
(Thanks to Alan Mintz.) * northamerica (America/Los_Angeles): Fix comment. * NEWS: Document this. --- NEWS | 7 +++++++ northamerica | 7 ++++--- 2 files changed, 11 insertions(+), 3 deletions(-) diff --git a/NEWS b/NEWS index 322087a..3d3a922 100644 --- a/NEWS +++ b/NEWS @@ -1,5 +1,12 @@ News for the tz database +Unreleased, experimental changes + + Changes affecting commentary + + The boundary of the US Pacific time zone is given more accurately. + (Thanks to Alan Mintz.) + Release 2013i - 2013-12-17 07:25:23 -0800 Changes affecting near-future time stamps: diff --git a/northamerica b/northamerica index 83c521b..d51a7e1 100644 --- a/northamerica +++ b/northamerica @@ -391,9 +391,10 @@ Zone America/Denver -6:59:56 - LMT 1883 Nov 18 12:00:04 # US Pacific time, represented by Los Angeles # # California, northern Idaho (Benewah, Bonner, Boundary, Clearwater, -# Idaho, Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties, -# and the northern three-quarters of Idaho county), -# most of Nevada, most of Oregon, and Washington +# Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties, Idaho county +# north of the Salmon River, and the towns of Burgdorf and Warren), +# Nevada (except West Wendover), Oregon (except the northern 3/4 of +# Malheur county), and Washington # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER Rule CA 1948 only - Mar 14 2:00 1:00 D -- 1.8.3.2
participants (3)
-
Alan Mintz -
Hank W. -
Paul Eggert