>From 4609f3bbb1c7015a35442e0e346b006812393c03 Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Wed, 29 May 2019 11:44:28 -0700 Subject: [PROPOSED] Add comments on Bonin Is and Marcus I * NEWS: Mention this. * australasia: Add commentary for Bonin (Ogasawara) Islands and Marcus Island (Minami-Tori-shima). (Thanks to Wakaba and Phake Nick.) --- NEWS | 4 ++++ australasia | 36 ++++++++++++++++++++++++++++++++++++ 2 files changed, 40 insertions(+) diff --git a/NEWS b/NEWS index f2c5965..9b539ba 100644 --- a/NEWS +++ b/NEWS @@ -51,6 +51,10 @@ Unreleased, experimental changes tzdata.zi now assumes zic 2017c or later. This shrinks tzdata.zi by a percent or so. + Changes to documentation and commentary + + New info on Bonin Islands and Marcus (thanks to Wakaba and Phake Nick.) + Release 2019a - 2019-03-25 22:01:33 -0700 diff --git a/australasia b/australasia index d057dfa..f2021cc 100644 --- a/australasia +++ b/australasia @@ -1581,6 +1581,42 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 ############################################################################### +# Bonin (Ogasawara) Islands and Marcus Island (Minami-Tori-shima) + +# From Wakaba (2019-01-28) via Phake Nick: +# National Diet Library of Japan has several reports by Japanese Government +# officers that describe the time used in islands when they visited there. +# According to them (and other sources such as newspapers), standard time UTC +# + 10 (JST + 1) and DST UTC + 11 (JST + 2) was used until its return to Japan +# at 1968-06-26 00:00 JST. The exact periods of DST are still unknown. +# I guessed Guam, Mariana, and Bonin and Marcus districts might have +# synchronized their DST periods, but reports imply they had their own +# decisions, i.e. there were three or more different time zones.... +# +# https://wiki.suikawiki.org/n/��������������������������� + +# From Phake Nick (2019-02-12): +# Because their last time change to return to Japanese time when they returned +# to Japanese rule was right before 1970, ... per the current tz database +# rule, the information doesn't warrant creation of a new timezone for Bonin +# Islands itself and is thus as an anecdotal note for interest purpose only. +# ... [The abovementioned link] described some special timekeeping phenomenon +# regarding Marcus island, another remote island currently owned by Japanese +# in the same administrative unit as Bonin Islands. Many reports claim that +# the American coastal guard on the American quarter of the island use its own +# coastal guard time, and most sources describe the time as UTC+11, being two +# hours faster than JST used by some Japanese personnel on the island. Some +# sites describe it as same as Wake Island/Guam time although it would be +# incorrect to be same as Guam. And then in a few Japanese governmental +# report from 1980s (from National Institute of Information and Communications +# Technology) regarding the construction of VLBI facility on the Marcus +# Island, it claimed that there are three time standards being used on the +# island at the time which include not just JST (UTC+9) or [US]CG time +# (UTC+11) but also a JMSDF time (UTC+10) (Japan Maritime Self-Defense +# Force). Unfortunately there are no other sources that mentioned such time +# and there are also no information on things like how the tine was used. + + # Fiji # Howse writes (p 153) that in 1879 the British governor of Fiji -- 2.21.0