[tz] more on Palm Springs

[Paul Eggert]

Steve Allen wrote:
> If inserting the Palm Springs story into tzdb is going to happen then
> UCR has scanned copies of the local paper.

Thanks for the URLs. Another city of two-timers, eh? Proposed patches attached.
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From bd9c0bf105b3902f01f3e444536b49f946397521 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert at cs.ucla.edu>
Date: Sun, 18 Mar 2018 14:48:39 -0700
Subject: [PROPOSED 1/2] * backzone: Palm Springs too (thanks to Steve Allen).

---
 backzone | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/backzone b/backzone
index de247f0..d1fd83b 100644
--- a/backzone
+++ b/backzone
@@ -358,6 +358,30 @@ Zone America/Montreal	-4:54:16 -	LMT	1884
 Zone America/Montserrat	-4:08:52 -	LMT	1911 Jul  1  0:01 # Cork Hill
 			-4:00	-	AST
 
+# United States
+#
+# From Paul Eggert (2018-03-18):
+# America/Palm_Springs would be tricky, as it kept two sets of clocks
+# in 1946/7.  See the following notes.
+#
+# From Steve Allen (2018-01-19):
+# The shadow of Mt. San Jacinto brings darkness very early in the winter
+# months.  In 1946 the chamber of commerce decided to put the clocks of Palm
+# Springs forward by an hour in the winter.
+# https://www.desertsun.com/story/life/2017/12/27/palm-springs-struggle-daylight-savings-time-and-idea-sun-time/984416001/
+# Desert Sun, Number 18, 1 November 1946
+# https://cdnc.ucr.edu/cgi-bin/cdnc?a=d&d=DS19461101
+# has proposal for meeting on front page and page 21.
+# Desert Sun, Number 19, 5 November 1946
+# https://cdnc.ucr.edu/cgi-bin/cdnc?a=d&d=DS19461105
+# reports that Sun Time won at the meeting on front page and page 5.
+# Desert Sun, Number 37, 7 January 1947
+# https://cdnc.ucr.edu/cgi-bin/cdnc?a=d&d=DS19470107.2.12
+# front page reports request to abandon Sun Time and page 7 notes a "class war".
+# Desert Sun, Number 38, 10 January 1947
+# https://cdnc.ucr.edu/cgi-bin/cdnc?a=d&d=DS19470110
+# front page reports on end.
+
 # Argentina
 # This entry was intended for the following areas, but has been superseded by
 # more detailed zones.
-- 
2.7.4

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From 0303b7892e189957d3470c06f06c71f68900a380 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert at cs.ucla.edu>
Date: Sun, 18 Mar 2018 15:19:29 -0700
Subject: [PROPOSED 2/2] * theory.html: Mention Chillicothe etc.

---
 theory.html | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/theory.html b/theory.html
index f40706a..4d8726d 100644
--- a/theory.html
+++ b/theory.html
@@ -568,15 +568,20 @@ href="https://www.dissentmagazine.org/blog/booked-a-global-history-of-time-vanes
     Other countries are not done nearly as well.
   </li>
   <li>
-    Sometimes, different people in the same city would maintain clocks
-    that differed significantly.
-    Railway time was used by railroad companies (which did not always
+    Sometimes, different people in the same city maintain clocks
+    that differ significantly.
+    Historically, railway time was used by railroad companies (which
+    did not always
     agree with each other), church-clock time was used for birth
     certificates, etc.
-    Often this was merely common practice, but sometimes it was set by law.
+    More recently, competing political groups might disagree about
+    clock settings. Often this is merely common practice, but
+    sometimes it is set by law.
     For example, from 1891 to 1911 the <abbr>UT</abbr> offset in France
     was legally <abbr>UT</abbr> +00:09:21 outside train stations and
-    <abbr>UT</abbr> +00:04:21 inside.
+    <abbr>UT</abbr> +00:04:21 inside. Other examples include
+    Chillicothe in 1920, Palm Springs in 1946/7, and Jerusalem and
+    Ürümqi to this day.
   </li>
   <li>
     Although a named location in the <code><abbr>tz</abbr></code>
-- 
2.7.4