[tz] Some time zone history (3)

[P Chan]

Correction:
> 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.

GMT-3:75 should be GMT-3:45

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Most of the documents below were obtained from British Online Archives and LLMC Digital.
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Barbados

https://1drv.ms/u/s!AgX5Bc6Y-VsIi3ioucfhJMcNlHr_?e=wjYyQa

Definition of Time Act, 1911 (1911-7) [1911-08-28]
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) (Repeal) Regulations, 1944, 1944-04-30

Standard time of GMT-4 was adopted in 1911. DST was observed in 1942-44. The transitions were:
1942-04-19 05:00 GMT
1942-08-31 06:00 GMT
1943-05-02 05:00 GMT
1943-09-05 06:00 GMT
1944-04-09 05:00 GMT
1944-09-10 06:00 GMT

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Gambia

https://1drv.ms/f/s!AgX5Bc6Y-VsIi0MbGvyuIXGge6Iq

Interpretation Ordinance, 1914 (No. 12 of 1914) [1914-09-29]
Interpretation Ordinance, 1933 (No. 10 of 1933) [1933-03-31]
Notice No. 5 of 1942, Colony of the Gambia Government Gazette, Vol. LIX, No.2, 1942-01-15, p 2
Interpretation (Amendment) Ordinance, 1946 (No. 3 of 1946) [1946-07-15]

Standard time of GMT-1 was adopted on 1933-04-01.  On 1942-02-01, GMT was adopted as a war time measure.  This was made permanent in 1946.

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Malawi

https://1drv.ms/f/s!AgX5Bc6Y-VsIi0sbGvyuIXGge6Iq

Interpretation and General Clauses Ordinance, 1911 (No. 12 of 1911) [1911-07-24]
Notice No. 124 of 1914, 1914-06-30, The Nyasaland Government Gazette, Vol. XXI, No. 8, 1914-06-30, p 122
Interpretation and General Clauses (Amendment) Ordinance, 1925 (No. 3 of 1925) [1925-04-02]

In 1911, Zomba mean time was adopted as the legal time of Nysaland. In 1914, Zomba mean time switched from GMT+2:21:10 to GMT+2:21. On 1925-07-01, GMT+2 was adopted.

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Nigeria

https://1drv.ms/f/s!AgX5Bc6Y-VsIi0cbGvyuIXGge6Iq

Government notices for the transition in 1905 and 1908. 

Government Notice No. 427 of 1905, 1905-06-17, Government Gazette. Colony of Lagos, No. 32, 1905, 1905-06-21, p 395
Government Notice No. 742 of 1908, 1908-06-24, Government Gazette. Colony of Southern Nigeria, No. 44, Vol. 3, 1905-06-24, p 869

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Sierra Leone

https://1drv.ms/f/s!AgX5Bc6Y-VsIi1EbGvyuIXGge6Iq

Government Notice No. 121 of 1913 , 1913-06-06, Sierra Leone Royal Gazette, Vol. XLIV, No. 1384, 1913-06-14, p 347
Alteration of Time Ordinance, 1932 (No. 34 of 1932) [1932-12-01]
Alteration of Time (Amendment) Ordinance, 1938 (No. 25 of 1938) [1938-11-24]
Defence Regulations (No. 9), 1939 (Regulations No. 9 of 1939),1939-09-05
Defence Regulations (No. 11), 1939 (Regulations No. 11 of 1939), 1939-09-27
Defence (Amendment) (No.17) Regulations, 1941 (Public Notice No.157 of 1941), 1914-12-04
Alteration of Time (Amendment) Ordinance, 1946 (No. 2 of 1946) [1946-02-07]

Standard time of GMT-1 was adopted on 1913-07-01. Twenty minutes of DST was introduce in 1932 and was suspended in 1939. In 1941, GMT was adopted by Defence Regulations. This was made permanent in 1946.

For DST in 1957-62, I have looked through the gazettes from 1957 to 1961 but could not find any laws or notices related to DST. Also, the Local Time Ordinance (Cap 2, 1960 Revised Edition) <https://books.google.com/books?id=B-U-AQAAIAAJ&pg=PA18> does not contain any provisions related to DST.

Proposed Rules:
# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
Rule	SL	1932	only	-	Dec	 1	0:00	0:20	-0040
Rule	SL	1933	1938	-	Mar	31	24:00	0	-01
Rule	SL	1933	1939	-	Aug	31	24:00	0:20	-0040
Rule	SL	1939	only	-	May	31	24:00	0	-01
Rule	SL	1939	only	-	Sep	 5	0:00	0	-01
Zone	Africa/Freetown	-0:53:00 -	LMT	1882
			-0:53:00 -	FMT	1913 Jul 1 # Freetown Mean Time
			-1:00	SL	%s	1941 Dec 6 24:00
			 0:00	-	GMT