[tz] Fiji DST Oct 26

[Tim Parenti]

It's not been our goal to reflect official policy so much as to reflect 
actual practice.  I'm of two minds about which route we should take in 
this instance.  To me, it boils down to which is likely to be less work 
for future maintenance, and on that, I'd bet your guess is as good as 
mine.  ;)

If we decide instead not to predict DST moving forward, an alternative 
proposed patch is attached.  (This is either/or w.r.t. my earlier patch, 
not cumulative.)

--
Tim Parenti

On 20 Oct 2014 14:02, Paul_Koning at Dell.com wrote:
>
> On Oct 20, 2014, at 1:17 PM, Tim Parenti <tim at timtimeonline.com> wrote:
>
>> Attached is a proposed patch.
>>
>> My patch assumes that this year's November start date is a one-time departure from the recent norm of Oct Sun>=21, and that DST will continue in 2015/2016 and beyond according to the pattern used between 2010 and 2014.  (For now, it seems to me that we're more likely to be closer to correct by assuming some DST in the future than by assuming none.)
>
> But given the apparent policy statement that the default is “no DST”, I think it would be better for our rules to say so.  In other words, make the current rule a once-only rule, and from then forward no DST.  Comments explaining why would be useful, given that a “no DST” default isn’t the obvious answer if you look at past practice.  Still, it’s one thing to infer a future rule from past behavior in the absence of any other data; it’s rather a different matter to continue doing so after we’ve been told that this isn’t the right way to look at things.
>
> 	paul
>
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From 612e10a17ef5d89643326e00f2ca19f371084a64 Mon Sep 17 00:00:00 2001
From: Tim Parenti <tim at timtimeonline.com>
Date: Mon, 20 Oct 2014 14:11:32 -0400
Subject: * australasia (Pacific/Fiji): Add DST dates for 2014/2015.

Do not assume DST dates beyond this.
* NEWS: Document this.

(Thanks to Ken Rylander for the heads-up.)
---
 NEWS        |  4 +++-
 australasia | 17 ++++++++++-------
 2 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/NEWS b/NEWS
index 91382e8..4b2d815 100644
--- a/NEWS
+++ b/NEWS
@@ -4,7 +4,9 @@ Unreleased, experimental changes
 
   Changes affecting future time stamps
 
-    Guess that Pacific/Fiji will not observe DST in 2014/2015.
+    Pacific/Fiji will observe DST from 2014-11-02 02:00 through
+    2015-01-18 03:00.  Do not assume DST dates afterwards due to ad hoc
+    year-by-year nature of DST announcements.
     (Thanks to Ken Rylander for the heads-up.)
 
     A new Zone Pacific/Bougainville, for the part of Papua New Guinea
diff --git a/australasia b/australasia
index 784fdca..900a26f 100644
--- a/australasia
+++ b/australasia
@@ -331,13 +331,14 @@ Zone	Indian/Cocos	6:27:40	-	LMT	1900
 # Fiji will end DST on 2014-01-19 02:00:
 # http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVINGS-TO-END-THIS-MONTH-%281%29.aspx
 
-# From Paul Eggert (2014-01-10):
-# For now, guess that Fiji springs forward the Sunday before the fourth
-# Monday in October, and springs back the penultimate Sunday in January.
-# This is ad hoc, but matches recent practice.
-
-# From Paul Eggert, after a heads-up from Ken Rylander (2014-10-14):
-# Fiji has made no decision about DST this year.  Guess they won't do it.
+# From Tim Parenti, after a heads-up from Ken Rylander (2014-10-20):
+# Fiji have just announced that they will observe DST from 2014-11-02 02:00
+# through 2015-01-18 03:00.
+# http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVING-STARTS-ON-SUNDAY,-NOVEMBER-2ND.aspx
+#
+# Although DST has been observed each year since 2009, its dates of observation
+# continue to be announced ad hoc, so do not assume DST dates any further into
+# the future.
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Fiji	1998	1999	-	Nov	Sun>=1	2:00	1:00	S
@@ -348,6 +349,8 @@ Rule	Fiji	2010	2013	-	Oct	Sun>=21	2:00	1:00	S
 Rule	Fiji	2011	only	-	Mar	Sun>=1	3:00	0	-
 Rule	Fiji	2012	2013	-	Jan	Sun>=18	3:00	0	-
 Rule	Fiji	2014	only	-	Jan	Sun>=18	2:00	0	-
+Rule	Fiji	2014	only	-	Nov	Sun>=1	2:00	1:00	S
+Rule	Fiji	2015	only	-	Jan	Sun>=18	3:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Fiji	11:55:44 -	LMT	1915 Oct 26 # Suva
 			12:00	Fiji	FJ%sT	# Fiji Time
-- 
2.1.1