Some time zone history (2)
Bahamas There were two periods of DST observed in 1941-1945: 1941-05-01 midnight to 1944-12-31 and 1945-02-01 to 1945-10-17 midnight. War Time Order 1942 [1942-05-01] and War Time (No. 2) Order 1942 [1942-09-29] Appendix to the Statutes of 7 George VI. and the Year 1942. p 34, 43 https://books.google.com/books?id=5rlNAQAAIAAJ&pg=RA3-PA34 https://books.google.com/books?id=5rlNAQAAIAAJ&pg=RA3-PA43 War Time Order 1943 [1943-03-31] and War Time Order 1944 [1943-12-29] Appendix to the Statutes of 8 George VI. and the Year 1943. p 9-10, 28-29 https://books.google.com/books?id=5rlNAQAAIAAJ&pg=RA4-PA9 https://books.google.com/books?id=5rlNAQAAIAAJ&pg=RA4-PA28 War Time Order 1945 [1945-01-31] and the Order which revoke War Time Order 1945 [1945-10-16] Appendix to the Statutes of 9 George VI. and the Year 1945. p 160, 247-248 https://books.google.com/books?id=5rlNAQAAIAAJ&pg=RA6-PA160 https://books.google.com/books?id=5rlNAQAAIAAJ&pg=RA6-PA247 ---------- Guyana British Guiana/Guyana adopted GMT-4 on 1911-08-01 , GMT-3:75 on 1915-03-01, GMT-3 on 1975-08-01 and GMT-4 on 1992-03-29. The Official Gazette of British Guiana. (New Series.) Vol. XL. July to December, 1915, p 1547 https://books.google.com/books?id=5-5CAQAAMAAJ&pg=SA1-PA547 Interpretation and general clauses (Amendment) Act 1975 (Act No. 27 of 1975) [1975-07-31] https://parliament.gov.gy/documents/acts/10923-act_no._27_of_1975_-_interpre... Interpretation and general clauses (Amendment) Act 1992 (Act No. 6 of 1992) [1992-04-18] https://parliament.gov.gy/documents/acts/5885-6_of_1992_interpretation_and_g... Circular No. 10/1992 dated 1992-03-30 https://dps.gov.gy/wp-content/uploads/2018/12/1992-03-20-Circular-010.pdf ---------- Nigeria On 1914-01-01, standard time of GMT+0:30 was adopted for the unified Nigeria. Colonial Reports - Annual. No. 878. Nigeria. Report for 1914. (April 1916), p 27 https://libsysdigi.library.illinois.edu/ilharvest/Africana/Books2011-05/3064... Interpretation Ordinance, 1914 (No. 4 of 1914) [1914-10-01] https://books.google.com.hk/books?id=mm5CAQAAMAAJ&pg=PA172 In 1919, standard time was changed to GMT+1. Interpretation Ordinance (Cap 2) The Laws of Nigeria, Containing the Ordinances of Nigeria, in Force on the 1st Day of January, 1923, Vol.I p 5-18 https://books.google.com.hk/books?id=BOMrAQAAMAAJ&pg=PA16 For the standard time used in Lagos before 1914, the Interpretation Ordinance of Southern Nigeria, 1908 revised edition defined “Time” to mean Greenwich time. That section was originated from Proclamation No. 11 of 1905 of the Protectorate of Southern Nigeria. But the Colony of Lagos was not merged into Southern Nigeria until May 1906. Moreover, the 1906 Report of Southern Nigeria says “all laws in force in any part of the territory prior to the commencement of the new system of government shall continue in force until further provision is made by the local legislature.” Lloyd's Register of Shipping (1915) says “Hitherto the time observed in Lagos was the local mean time. On 1st January, 1914, standard time for the whole of Nigeria was introduced … Lagos time has been advanced about 16 minutes accordingly.” Therefore it is possible that no standard time was adopted in Lagos until 1914. Interpretation Ordinance (Cap 2) Laws of the Colony of Southern Nigeria : being the schedule to the Statute laws revision ordinance, 1908, Vol.I, p 3-11 https://babel.hathitrust.org/cgi/pt?id=mdp.35112105426037&view=1up&seq=61 Colonial Reports - Annual. No. 554. Southern Nigeria. Report for 1906. (February 1908), p 43 https://libsysdigi.library.illinois.edu/ilharvest/Africana/Books2011-05/3064... Lloyd's Register of Shipping. 1915-16. Vol. II.-Appendix. ,p 655 https://books.google.com/books?id=b_ROAQAAIAAJ&pg=PA655 ---------- Seychelles Standard Time was adopted on 1907-01-01. Standard Time Ordinance (Chapter 237) The Laws of Seychelles in Force on the 31st December, 1971, Vol. 6, p 571 https://books.google.com/books?id=efE-AQAAIAAJ&pg=PA571 ---------- Turks and Caicos Islands Standard Time Declaration Order 2015 (L.N. 15/2015) http://online.fliphtml5.com/fizd/czin/#p=2 Standard Time Declaration Order 2017 (L.N. 31/2017) http://online.fliphtml5.com/fizd/dmcu/#p=2 ---------- Vanuatu DST was observed in 1973/1974. The spring forward in 1984 should be on Sep 23. Joint Daylight Saving Regulation No 59 of 1973 New Hebrides Condominium Gazette No 336. December 1973 http://www.paclii.org/vu/other/VUNHGovGaz//1973/11.pdf#page=15 Joint Daylight Saving (Repeal) Regulation No 10 of 1974 New Hebrides Condominium Gazette No 336. March 1974 http://www.paclii.org/vu/other/VUNHGovGaz//1974/3.pdf#page=11 Summer Time Act No. 35 of 1982 [1983-09-01] http://www.paclii.org/vu/other/VUGovGaz/1982/32.pdf#page=48 Summer Time Act (Cap 157) Laws of the Republic of Vanuatu Revised Edition 1988 http://www.paclii.org/cgi-bin/sinodisp/vu/legis/consol_act1988/sta147/sta147... Summer Time (Amendment) Act No. 6 of 1991 [1991-11-11] http://www.paclii.org/vu/legis/num_act/sta1991227/ Summer Time (Repeal) Act No. 4 of 1993 [1993-05-03] http://www.paclii.org/vu/other/VUGovGaz/1993/15.pdf#page=59
On 11/27/20 4:03 AM, P Chan wrote:
Bahamas
There were two periods of DST observed in 1941-1945: 1941-05-01 midnight to 1944-12-31 and 1945-02-01 to 1945-10-17 midnight.
Thanks for the corrections. Unfortunately I cannot access the books.google.com pages that you cited; I see only a snippet view. I assume that "midnight" meant 00:00 on the given dates; if this is wrong please let me know. In the meantime I installed the attached patch. Since we were already using US-style abbreviations for the Bahamas this patch keeps that tradition. I plan to look at your email's Guyana corrections next.
Sorry, I made some typos. It should be "There were two periods of DST observed in 1942-1945: 1942-05-01 midnight to 1944-12-31 midnight and 1945-02-01 to 1945-10-17 midnight." "midnight" should mean 24:00 from the context. You may see the orders from the attachment. Tips: You can request Google to release the entire book if you see only a snippet view.<https://support.google.com/websearch/answer/6113327> Fill in the form and choose "I’d like to see the entire book, and I believe the book is in the public domain". Usually, it will be approved in 2-3 days if the book is old enough. I have done this to many books I cited.
On 2020-12-01 19:01, P Chan wrote:
Sorry, I made some typos. It should be "There were two periods of DST observed in 1942-1945: 1942-05-01 midnight to 1944-12-31 midnight and 1945-02-01 to 1945-10-17 midnight." "midnight" should mean 24:00 from the context. You may see the orders from the attachment.
Tips: You can request Google to release the entire book if you see only a snippet view.<https://support.google.com/websearch/answer/6113327> Fill in the form and choose "I’d like to see the entire book, and I believe the book is in the public domain". Usually, it will be approved in 2-3 days if the book is old enough. I have done this to many books I cited.
If you access any source, please also go to archive.org and try to access it there, to capture the contents for the future if the original gets re-/moved. -- Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada This email may be disturbing to some readers as it contains too much technical detail. Reader discretion is advised. [Data in binary units and prefixes, physical quantities in SI.]
On 12/1/20 6:01 PM, P Chan wrote:
Sorry, I made some typos. It should be "There were two periods of DST observed in 1942-1945: 1942-05-01 midnight to 1944-12-31 midnight and 1945-02-01 to 1945-10-17 midnight." "midnight" should mean 24:00 from the context. Thanks for the corrections and clarifications. I installed the attached patch accordingly.
For the standard time used in Lagos before 1914...
Please ignore that paragraph. GMT was adopted as the standard time of Lagos on 1905-07-01. Lagos Weekly Record, 1905-06-24, p 3 http://ddsnext.crl.edu/titles/31558#?c=0&m=668&s=0&cv=2&r=0&xywh=1446%2C5221... says "It is officially notified that on and after the 1st of July 1905 Greenwich Mean Solar Time will be adopted thought the Colony and Protectorate, and that it will be necessary to put all clocks 13 minutes and 35 seconds back, recording local mean time."
GMT was adopted as the standard time of Lagos on 1905-07-01.
It seemed that Lagos returned to LMT on 1908-07-01. Lagos Weekly Record, 1908-07-01, p 5 http://ddsnext.crl.edu/titles/31556#?c=0&m=78&s=0&cv=4&r=0&xywh=-92%2C3590%2... says "Scarcely have the people become accustomed to this new time, when another official notice has now appeared announcing that from and after the 1st July next, return will be made to local mean time."
On Fri, 27 Nov 2020 at 07:04, P Chan <legco@outlook.com> wrote:
Vanuatu
DST was observed in 1973/1974. The spring forward in 1984 should be on Sep 23.
Thanks; I've installed the attached patch. The early Tuesday morning transition we'd previously had on 23 October 1984 was certainly suspect. It is notable that the effective times of the 1973/1974 changes were given as "twelve o'clock midday, Greenwich mean time"; of course this would be late in the evening in the region. Transitions in the 1983–1993 period were all given as taking effect "at midnight local time on the fourth Saturday" (in the French, "à minuit, heure locale le quatrième samedi"), which mostly matches with our previous data if taken to mean 24:00, which makes sense given context. I used "Sat>=22 24:00" to simplify the September transitions in 1983–1991, and carried this notation forward to the others to better match the legislation, although it doesn't change any other transitions (which we had as the equivalent "Sun>=23 0:00"). -- Tim Parenti
On Fri, 27 Nov 2020 at 07:04, P Chan <legco@outlook.com> wrote:
Turks and Caicos Islands
Standard Time Declaration Order 2015 (L.N. 15/2015) http://online.fliphtml5.com/fizd/czin/#p=2
Standard Time Declaration Order 2017 (L.N. 31/2017) http://online.fliphtml5.com/fizd/dmcu/#p=2
Thanks; I've installed the attached patch. Although this doesn't change any historical clock offsets, it does model the period 2015-03-08/11-01 as AST, rather than as EDT, which also changes the DST flag. As for the 2018 change… Although L.N. 31/2017 reads that it "shall come into operation at 2:00 a.m. on 11th March 2018", a precise interpretation here poses some problems. The order states that "the standard time to be observed throughout the Turks and Caicos Islands shall be the same time zone as the Eastern United States of America" and further clarifies "[f]or the avoidance of doubt" that it "applies to the Eastern Standard Time as well as any changes thereto for Daylight Saving Time." However, as clocks in Turks and Caicos approached 02:00 -04, and thus the declared implementation time, it was still 01:00 EST (-05), as DST in the Eastern US would not start until an hour later. Since it is unlikely that those on the islands switched their clocks twice in the span of an hour, we've assumed instead that the adoption of EDT actually took effect once clocks in the Eastern US had sprung forward, from 03:00 -04. This discrepancy only affects the time zone abbreviation and DST flag for the intervening hour, not wall clock times, as -04 was maintained throughout. -- Tim Parenti
On Fri, 27 Nov 2020 at 07:04, P Chan <legco@outlook.com> wrote:
Seychelles
Standard Time was adopted on 1907-01-01.
Standard Time Ordinance (Chapter 237) The Laws of Seychelles in Force on the 31st December, 1971, Vol. 6, p 571 https://books.google.com/books?id=efE-AQAAIAAJ&pg=PA571
Thanks; I installed the attached patch. Since it wasn't immediately obvious from your source that the "1st January, 1907" referred to the final date of effect, I sought out the original text of the Ordinance No. 9 of 1906 referenced therein, and found a footnote in "The Laws of Seychelles Revised: Seychelles local laws, 1899-1906" (published in 1907 by W.L. Rind) which confirms it as the date the ordinance was brought into force. https://books.google.com/books?id=DYdDAQAAMAAJ&pg=PA1689 -- Tim Parenti
On Fri, 27 Nov 2020 at 07:04, P Chan <legco@outlook.com> wrote:
Nigeria
Thanks; I installed the attached patch which incorporates many of these sources, the corrections you sent on this thread last week, and the source you provided on your latest thread "(3)" just now, as well as another one I found during my own searches to further back up these sources. -- Tim Parenti
On Fri, 27 Nov 2020 at 07:04, P Chan <legco@outlook.com> wrote:
Guyana
British Guiana/Guyana adopted GMT-4 on 1911-08-01 , GMT-3:75 on 1915-03-01, GMT-3 on 1975-08-01 and GMT-4 on 1992-03-29.
The Official Gazette of British Guiana. (New Series.) Vol. XL. July to December, 1915, p 1547 https://books.google.com/books?id=5-5CAQAAMAAJ&pg=SA1-PA547
Interpretation and general clauses (Amendment) Act 1975 (Act No. 27 of 1975) [1975-07-31]
https://parliament.gov.gy/documents/acts/10923-act_no._27_of_1975_-_interpre...
Interpretation and general clauses (Amendment) Act 1992 (Act No. 6 of 1992) [1992-04-18]
https://parliament.gov.gy/documents/acts/5885-6_of_1992_interpretation_and_g...
Circular No. 10/1992 dated 1992-03-30 https://dps.gov.gy/wp-content/uploads/2018/12/1992-03-20-Circular-010.pdf
Thanks again; finally circling back to this. I've installed the attached patch 0001 for Guyana. I believe this completes the work raised in this (2) thread. -- Tim Parenti
participants (4)
-
Brian Inglis -
P Chan -
Paul Eggert -
Tim Parenti