[tz] [PROPOSED] * backzone: More commentary re 1940s Bahrain.
eggert at cs.ucla.edu
Thu Jul 23 20:33:16 UTC 2020
backzone | 20 ++++++++++++++++----
1 file changed, 16 insertions(+), 4 deletions(-)
diff --git a/backzone b/backzone
index 7cf026d..f2684b4 100644
@@ -460,19 +460,31 @@ Zone Asia/Aden 2:59:54 - LMT 1950
-# From Paul Eggert (2020-07-22):
+# From Paul Eggert (2020-07-23):
# Most of this data comes from:
# Stewart A. Why Gulf Standard Time is far from standard: the fascinating story
# behind the time zone's invention. The National (Abu Dhabi). 2020-07-22.
-# Stewart writes that before 1940 some companies in Bahrain were at +0330 and
+# Stewart writes that before 1941 some companies in Bahrain were at +0330 and
# others at +0323. Reginald George Alban, a British political agent based in
# Manama, worked to standardize this, and from 1941-07-20 Bahrain was at
# +0330. However, BOAC asked that clocks be moved to gain more light at day's
# end, so Bahrain switched to +04 on 1944-01-01.
-# We don't know when companies chose +0330 or +0323 before 1940; for now
-# assume that there was no real standard in Bahrain before 1941-07-20.
+# Re the 1941 transition, Stewart privately sent me this citation:
+# "File 16/53 Enquiries Re: Calculation of Local Time", British Library: India
+# Office Records and Private Papers, IOR/R/15/2/1564, in Qatar Digital Library
+# It says there was no real standard in Bahrain before 1941-07-20.
+# +0330 was used by steamers of the British India Co, by Petroleum Concessions
+# and by Cable & Wireless; +0323 was used by the Eastern Bank Ltd, BOAC, and
+# Bahrein Petroleum (Bapco), and California Arabian Standard Oil Co (Casoc)
+# adopted DST effective 1941-05-24. Alban suggested adopting DST, R.B. Coomb
+# of C&W countersuggested +0330, and although C.A. Rodstrom of Casoc (formerly
+# of Bapco) stated that Bahrain had formerly used +0330 before Bapco arrived
+# but Bapco switched to +0323 because of "constant confusion", the consensus
+# was +0330. The government adopted +0330 in 1941-07-20 and companies seem to
+# have switched by 08-01. No time of day was given for the 1940s transitions.
Zone Asia/Bahrain 3:22:20 - LMT 1941 Jul 20 # Manamah
3:30 - +0330 1944 Jan 1
4:00 - +04 1972 Jun
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