[tz] Tonga returns to DST on 2016-11-06

[Tim Parenti]

Tonga will observe DST from 2016-11-06 02:00 until 2017-01-15 03:00, in 
line with Fiji.
http://mic.gov.to/news-today/press-releases/6375-daylight-saving-set-to-run-from-6-november-2016-to-15-january-2017

This came through as a pull request on the Github repo:
https://github.com/eggert/tz/pull/19

Originally submitted patch and proposed follow-up attached.

-- 
Tim Parenti

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From 2b7081316d06be1bccae3121674ee9b50aec196b Mon Sep 17 00:00:00 2001
From: pulu <pulu at afe.to>
Date: Thu, 27 Oct 2016 00:42:47 +1300
Subject: Add new Daylight savings info for Tonga per mentioned govt release

---
 australasia | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/australasia b/australasia
index 85d3632..522869c 100644
--- a/australasia
+++ b/australasia
@@ -702,6 +702,8 @@ Rule	Tonga	1999	only	-	Oct	 7	2:00s	1:00	S
 Rule	Tonga	2000	only	-	Mar	19	2:00s	0	-
 Rule	Tonga	2000	2001	-	Nov	Sun>=1	2:00	1:00	S
 Rule	Tonga	2001	2002	-	Jan	lastSun	2:00	0	-
+Rule	Tonga	2016	max	-	Nov	Sun>=1	2:00	1:00	S
+Rule	Tonga	2017	max	-	Jan	Sun>=15	3:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Tongatapu	12:19:20 -	LMT	1901
 			12:20	-	TOT	1941 # Tonga Time
@@ -1715,6 +1717,11 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # From Pulu 'Anau (2002-11-05):
 # The law was for 3 years, supposedly to get renewed.  It wasn't.
 
+# From http://mic.gov.to/news-today/press-releases/6375-daylight-saving-set-to-run-from-6-november-2016-to-15-january-2017
+# via Pulu 'Anau
+# Cannot find anyone who knows the rules, has seen the duration or
+# has seen the cabinet decision, but it appears we are following Fiji's rule
+# set, coded accordingly.
 
 # Wake
 
-- 
2.8.0
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From 325209fab7949675a588eb034f10dfa04a049115 Mon Sep 17 00:00:00 2001
From: Tim Parenti <tim at timtimeonline.com>
Date: Wed, 26 Oct 2016 23:40:57 -0400
Subject: * australasia (Tonga): Update commentary for 2016-2017 DST.

* NEWS: Mention the change.
---
 NEWS        |  7 +++++++
 australasia | 10 +++++++---
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/NEWS b/NEWS
index 0eb56dd..e6e2d55 100644
--- a/NEWS
+++ b/NEWS
@@ -2,6 +2,13 @@ News for the tz database
 
 Unreleased, experimental changes
 
+  Changes to future time stamps
+
+    Pacific/Tongatapu begins DST on 2016-11-06 at 02:00, ending on
+    2017-01-15 at 03:00.  Assume future observances in Tonga will be
+    from the first Sunday in November through the third Sunday in
+    January, like Fiji.  (Thanks to Pulu 'Anau.)
+
   Changes to past time stamps
 
     Pre-1975 rules for daylight saving in Italy have been changed to
diff --git a/australasia b/australasia
index 522869c..103aa74 100644
--- a/australasia
+++ b/australasia
@@ -1717,11 +1717,15 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # From Pulu 'Anau (2002-11-05):
 # The law was for 3 years, supposedly to get renewed.  It wasn't.
 
-# From http://mic.gov.to/news-today/press-releases/6375-daylight-saving-set-to-run-from-6-november-2016-to-15-january-2017
-# via Pulu 'Anau
+# From Pulu 'Anau (2016-10-27):
+# http://mic.gov.to/news-today/press-releases/6375-daylight-saving-set-to-run-from-6-november-2016-to-15-january-2017
 # Cannot find anyone who knows the rules, has seen the duration or
 # has seen the cabinet decision, but it appears we are following Fiji's rule
-# set, coded accordingly.
+# set.
+#
+# From Tim Parenti (2016-10-26):
+# Assume Tonga will observe DST from the first Sunday in November at 02:00
+# through the third Sunday in January at 03:00, like Fiji, for now.
 
 # Wake
 
-- 
2.8.0