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* NEWS, asia, backzone, northamerica: Document fractional GMT offsets

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for Chennai, Jakarta, and New York in the 19th century.
This commit is contained in:
Paul Eggert
2014-09-06 18:41:05 -07:00
parent 720111eb8a
commit 20532ffda0
4 changed files with 18 additions and 0 deletions
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3
NEWS
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@@ -29,6 +29,9 @@ Unreleased, experimental changes
Gregorian calendar and Universal Time without leap seconds. Gregorian calendar and Universal Time without leap seconds.
(Thanks to Arthur David Olson for reporting the problem.) (Thanks to Arthur David Olson for reporting the problem.)
Fractional-second GMT offsets have been documented for civil time
in 19th-century Chennai, Jakarta, and New York.
Release 2014g - 2014-08-28 12:31:23 -0700 Release 2014g - 2014-08-28 12:31:23 -0700

4
asia
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@@ -893,6 +893,10 @@ Zone Asia/Kolkata 5:53:28 - LMT 1880 # Kolkata
# Indonesia # Indonesia
# #
# From Paul Eggert (2014-09-06):
# The 1876 Report of the Secretary of the [US] Navy, p 306 says that Batavia
# civil time was 7:07:12.5; round to even for Jakarta.
#
# From Gwillim Law (2001-05-28), overriding Shanks & Pottenger: # From Gwillim Law (2001-05-28), overriding Shanks & Pottenger:
# http://www.sumatera-inc.com/go_to_invest/about_indonesia.asp#standtime # http://www.sumatera-inc.com/go_to_invest/about_indonesia.asp#standtime
# says that Indonesia's time zones changed on 1988-01-01. Looking at some # says that Indonesia's time zones changed on 1988-01-01. Looking at some

5
backzone
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@@ -306,6 +306,11 @@ Zone Antarctica/McMurdo 0 - zzz 1956
Link Antarctica/McMurdo Antarctica/South_Pole Link Antarctica/McMurdo Antarctica/South_Pole
# India # India
#
# From Paul Eggert (2014-09-06):
# The 1876 Report of the Secretary of the [US] Navy, p 305 says that Madras
# civil time was 5:20:57.3.
#
# From Paul Eggert (2014-08-21): # From Paul Eggert (2014-08-21):
# In tomorrow's The Hindu, Nitya Menon reports that India had two civil time # 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 # zones starting in 1884, one in Bombay and one in Calcutta, and that railways

6
northamerica
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@@ -277,6 +277,12 @@ Zone PST8PDT -8:00 US P%sT
# time zone, but we do go by the Eastern time zone because so many people work # time zone, but we do go by the Eastern time zone because so many people work
# in Columbus." # in Columbus."
# From Paul Eggert (2014-09-06):
# Monthly Notices of the Royal Astronomical Society 44, 4 (1884-02-08), 208
# says that New York City Hall time was 3 minutes 58.4 seconds fast of
# Eastern time (i.e., -4:56:01.6) just before the 1883 switch. Round to the
# nearest second.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
Rule NYC 1920 only - Mar lastSun 2:00 1:00 D Rule NYC 1920 only - Mar lastSun 2:00 1:00 D
Rule NYC 1920 only - Oct lastSun 2:00 0 S Rule NYC 1920 only - Oct lastSun 2:00 0 S