From 42efb563b8224a20c1a6480b38427e5b4634da36 Mon Sep 17 00:00:00 2001 From: Tim Parenti Date: Sat, 20 Feb 2021 18:14:55 -0500 Subject: Add Barbados DST 1942-1944, fix end of LMT (Thanks to P Chan.) * NEWS: Mention this. * northamerica (Barb, America/Barbados): Standard time was introduced on 1911-08-28, not in 1932. DST of varying amounts was observed in 1942 through 1944. --- NEWS | 2 ++ northamerica | 40 ++++++++++++++++++++++++++++++++++++++-- 2 files changed, 40 insertions(+), 2 deletions(-) diff --git a/NEWS b/NEWS index b7d37f2..5bad174 100644 --- a/NEWS +++ b/NEWS @@ -6,6 +6,8 @@ Unreleased, experimental changes Correct many pre-1993 transitions, fixing entries originally derived from Shanks and from Whitman. The fixes include: + - Barbados: standard time was introduced in 1911, not 1932; and + DST was observed in 1942-1944 - Guyana: corrected LMT for Georgetown; the introduction of standard time in 1911, not 1915; and corrections to 1975 and 1992 transitions diff --git a/northamerica b/northamerica index ddc5759..724bda3 100644 --- a/northamerica +++ b/northamerica @@ -2978,15 +2978,51 @@ Zone America/Nassau -5:09:30 - LMT 1912 Mar 2 # For 1899 Milne gives -3:58:29.2; round that. +# From P Chan (2020-12-09 and 2020-12-11): +# Standard time of GMT-4 was adopted in 1911. +# Definition of Time Act, 1911 (1911-7) [1911-08-28] +# 1912, Laws of Barbados (5 v.), OCLC Number: 919801291, Vol. 4, Image No. 522 +# 1944, Laws of Barbados (5 v.), OCLC Number: 84548697, Vol. 4, Image No. 122 +# http://llmc.com/browse.aspx?type=2&coll=85&div=297 +# +# DST was observed in 1942-44. +# Defence (Daylight Saving) Regulations, 1942, 1942-04-13 +# Defence (Daylight Saving) (Repeal) Regulations, 1942, 1942-08-22 +# Defence (Daylight Saving) Regulations, 1943, 1943-04-16 +# Defence (Daylight Saving) (Repeal) Regulations, 1943, 1943-09-01 +# Defence (Daylight Saving) Regulations, 1944, 1944-03-21 +# [Defence (Daylight Saving) (Amendment) Regulations 1944, 1944-03-28] +# Defence (Daylight Saving) (Repeal) Regulations, 1944, 1944-08-30 +# +# 1914-, Subsidiary Legis., Annual Vols. OCLC Number: 226290591 +# 1942: Image Nos. 527-528, 555-556 +# 1943: Image Nos. 178-179, 198 +# 1944: Image Nos. 113-115, 129 +# http://llmc.com/titledescfull.aspx?type=2&coll=85&div=297&set=98437 +# +# From Tim Parenti (2021-02-20): +# The transitions below are derived from P Chan's sources, except that the 1977 +# through 1980 transitions are from Shanks & Pottenger since we have no better +# data there. Of particular note, the 1944 DST regulation only advanced the +# time to "exactly three and a half hours later than Greenwich mean time", as +# opposed to "three hours" in the 1942 and 1943 regulations. + # Rule NAME FROM TO - IN ON AT SAVE LETTER/S +Rule Barb 1942 only - Apr 19 5:00u 1:00 D +Rule Barb 1942 only - Aug 31 6:00u 0 S +Rule Barb 1943 only - May 2 5:00u 1:00 D +Rule Barb 1943 only - Sep 5 6:00u 0 S +Rule Barb 1944 only - Apr 10 5:00u 0:30 - +Rule Barb 1944 only - Sep 10 6:00u 0 S Rule Barb 1977 only - Jun 12 2:00 1:00 D Rule Barb 1977 1978 - Oct Sun>=1 2:00 0 S Rule Barb 1978 1980 - Apr Sun>=15 2:00 1:00 D Rule Barb 1979 only - Sep 30 2:00 0 S Rule Barb 1980 only - Sep 25 2:00 0 S # Zone NAME STDOFF RULES FORMAT [UNTIL] -Zone America/Barbados -3:58:29 - LMT 1924 # Bridgetown - -3:58:29 - BMT 1932 # Bridgetown Mean Time +Zone America/Barbados -3:58:29 - LMT 1911 Aug 28 # Bridgetown + -4:00 Barb A%sT 1944 + -4:00 Barb AST/-0330 1945 -4:00 Barb A%sT # Belize -- 2.15.1