--- backzone | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) diff --git a/backzone b/backzone index 7cf026d..f2684b4 100644 --- a/backzone +++ b/backzone @@ -460,19 +460,31 @@ Zone Asia/Aden 2:59:54 - LMT 1950 # Bahrain # -# 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. # https://www.thenational.ae/arts-culture/why-gulf-standard-time-is-far-from-s... -# 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 +# https://www.qdl.qa/archive/81055/vdc_100000000282.0x00012b +# 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 -- 2.17.1