[tz] [PATCH] * asia (Asia/Kolkata): Add comment about 19th-century Madras time.

Paul Eggert eggert at cs.ucla.edu
Sat Aug 23 19:49:44 UTC 2014


Lester Caine wrote:
> It would be more appropriate to tag it as that then rather than simply
> saying it's before 1970.

OK, revised patch attached.
-------------- next part --------------
From 4b82d179b5f15a15b710ea734d0621fce1bf00d0 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert at cs.ucla.edu>
Date: Thu, 21 Aug 2014 23:39:21 -0700
Subject: [PROPOSED PATCH] Improve commentary for time long ago in India. *
 asia: Move commentary about Portuguese India from here ... * backzone: ...
 too here.  Add comment about 19th-century Madras time. * NEWS: Document this.

---
 NEWS     |  3 ++-
 asia     |  7 -------
 backzone | 16 ++++++++++++++++
 3 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/NEWS b/NEWS
index 7bc8b05..6ba9797 100644
--- a/NEWS
+++ b/NEWS
@@ -95,7 +95,8 @@ Unreleased, experimental changes
     Some broken URLs have been fixed in the commentary.  (Thanks to
     Lester Caine.)
 
-    Commentary about Philippines DST has been updated.
+    Commentary about Philippines DST has been updated, and commentary
+    on pre-1970 time in India has been added.
 
 
 Release 2014f - 2014-08-05 17:42:36 -0700
diff --git a/asia b/asia
index b3afc5d..806a8c7 100644
--- a/asia
+++ b/asia
@@ -879,13 +879,6 @@ Zone	Asia/Dili	8:22:20 -	LMT	1912 Jan  1
 			9:00	-	TLT
 
 # India
-
-# From Paul Eggert (2014-08-11), after a heads-up from Stephen Colebourne:
-# According to a Portuguese decree (1911-05-26)
-# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
-# Portuguese India switched to GMT+5 on 1912-01-01.
-# Ignore this as it predates our 1970 cutoff.
-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Kolkata	5:53:28 -	LMT	1880        # Kolkata
 			5:53:20	-	HMT	1941 Oct    # Howrah Mean Time?
diff --git a/backzone b/backzone
index 460f864..66d3e27 100644
--- a/backzone
+++ b/backzone
@@ -261,6 +261,15 @@ Zone Antarctica/McMurdo	0	-	zzz	1956
 			12:00	NZ	NZ%sT
 Link Antarctica/McMurdo Antarctica/South_Pole
 
+# India
+# From Paul Eggert (2014-08-21):
+# In tomorrow's The Hindu, Nitya Menon reports that India had two civil time
+# zones starting in 1884, one in Bombay and one in Calcutta, and that railways
+# used a third time zone based on Madras time (80 deg. 18'30" E).  Also,
+# in 1881 Bombay briefly switched to Madras time, but switched back.  See:
+# http://www.thehindu.com/news/cities/chennai/madras-375-when-madras-clocked-the-time/article6339393.ece
+#Zone	  Asia/Chennai  [not enough info to complete]
+
 # China
 # Changbai Time ("Long-white Time", Long-white = Heilongjiang area)
 # Heilongjiang (except Mohe county), Jilin
@@ -288,6 +297,13 @@ Zone	Asia/Kashgar	5:03:56	-	LMT	1928     # or Kashi or Kaxgar
 			5:00	-	KAST	1980 May
 			8:00	PRC	C%sT
 
+# India
+# From Paul Eggert (2014-08-11), after a heads-up from Stephen Colebourne:
+# According to a Portuguese decree (1911-05-26)
+# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
+# Portuguese India switched to GMT+5 on 1912-01-01.
+#Zone	Asia/Panaji	[not enough info to complete]
+
 # Israel
 Zone	Asia/Tel_Aviv	2:19:04 -	LMT	1880
 			2:21	-	JMT	1918
-- 
1.9.1


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