[PROPOSED] Cite US DST legislation
* northamerica: Cite all the US federal DST legislation. (US): Adjust table to match the legislation more closely. This does not affect the TZif output files. --- northamerica | 26 ++++++++++++++++++++------ 1 file changed, 20 insertions(+), 6 deletions(-) diff --git a/northamerica b/northamerica index 65827ec..52898de 100644 --- a/northamerica +++ b/northamerica @@ -93,10 +93,24 @@ # was the first nationwide legal time standard, and apparently # time was just called "Standard Time" or "Daylight Saving Time". -# From Arthur David Olson: -# US Daylight Saving Time ended on the last Sunday of *October* in 1974. -# See, for example, the front page of the Saturday, 1974-10-26 -# and Sunday, 1974-10-27 editions of the Washington Post. +# From Paul Eggert (2019-06-04): +# Here is the legal basis for the US federal rules. +# * Public Law 65-107 (1918-03-19) implemented standard and daylight saving +# time for the first time across the US, springing forward on March's last +# Sunday and falling back on October's last Sunday. +# * Public Law 66-40 (1919-08-20) repealed DST on October 1919's last Sunday. +# * Public Law 77-403 (1942-01-20) started wartime DST on 1942-02-09. +# * Public Law 79-187 (1945-09-25) ended wartime DST on 1945-09-30. +# * Public Law 89-387 (1966-04-13) reinstituted a national standard for DST, +# from April's last Sunday to October's last Sunday, effective 1967. +# * Public Law 93-182 (1973-12-15) moved the 1974 spring-forward to 01-06. +# * Public Law 94-434 (1974-10-05) moved the 1975 spring-forward to +# February's last Sunday. +# * Public Law 99-359 (1986-07-08) moved the spring-forward to April's first +# Sunday. +# * Public Law 109-50 (2005-08-08), effective 2007, moved the spring-forward +# to March's second Sunday and the fall-back to November's first Sunday. +# All transitions are at 02:00 local time. # From Arthur David Olson: # Before the Uniform Time Act of 1966 took effect in 1967, observance of @@ -152,11 +166,11 @@ Rule US 1918 1919 - Mar lastSun 2:00 1:00 D Rule US 1918 1919 - Oct lastSun 2:00 0 S Rule US 1942 only - Feb 9 2:00 1:00 W # War Rule US 1945 only - Aug 14 23:00u 1:00 P # Peace -Rule US 1945 only - Sep lastSun 2:00 0 S +Rule US 1945 only - Sep 30 2:00 0 S Rule US 1967 2006 - Oct lastSun 2:00 0 S Rule US 1967 1973 - Apr lastSun 2:00 1:00 D Rule US 1974 only - Jan 6 2:00 1:00 D -Rule US 1975 only - Feb 23 2:00 1:00 D +Rule US 1975 only - Feb lastSun 2:00 1:00 D Rule US 1976 1986 - Apr lastSun 2:00 1:00 D Rule US 1987 2006 - Apr Sun>=1 2:00 1:00 D Rule US 2007 max - Mar Sun>=8 2:00 1:00 D -- 2.21.0
Am 04.06.2019 09:08, schrieb Paul Eggert:
* northamerica: Cite all the US federal DST legislation. (US): Adjust table to match the legislation more closely. This does not affect the TZif output files. --- northamerica | 26 ++++++++++++++++++++------ 1 file changed, 20 insertions(+), 6 deletions(-)
diff --git a/northamerica b/northamerica index 65827ec..52898de 100644 --- a/northamerica +++ b/northamerica @@ -93,10 +93,24 @@ # was the first nationwide legal time standard, and apparently # time was just called "Standard Time" or "Daylight Saving Time".
-# From Arthur David Olson: -# US Daylight Saving Time ended on the last Sunday of *October* in 1974. -# See, for example, the front page of the Saturday, 1974-10-26 -# and Sunday, 1974-10-27 editions of the Washington Post. +# From Paul Eggert (2019-06-04): +# Here is the legal basis for the US federal rules. +# * Public Law 65-107 (1918-03-19) implemented standard and daylight saving +# time for the first time across the US, springing forward on March's last +# Sunday and falling back on October's last Sunday. +# * Public Law 66-40 (1919-08-20) repealed DST on October 1919's last Sunday. +# * Public Law 77-403 (1942-01-20) started wartime DST on 1942-02-09. +# * Public Law 79-187 (1945-09-25) ended wartime DST on 1945-09-30. +# * Public Law 89-387 (1966-04-13) reinstituted a national standard for DST, +# from April's last Sunday to October's last Sunday, effective 1967. +# * Public Law 93-182 (1973-12-15) moved the 1974 spring-forward to 01-06. +# * Public Law 94-434 (1974-10-05) moved the 1975 spring-forward to +# February's last Sunday. +# * Public Law 99-359 (1986-07-08) moved the spring-forward to April's first +# Sunday. +# * Public Law 109-50 (2005-08-08), effective 2007, moved the spring-forward +# to March's second Sunday and the fall-back to November's first Sunday. +# All transitions are at 02:00 local time.
Historical interesting, ntl i would only cite the current ruling here. Everything else can go to a different file otherwise this will be a big burden to maintain, add non vital information and increase size without need. just my 2 cents, re, wh
# From Arthur David Olson: # Before the Uniform Time Act of 1966 took effect in 1967, observance of @@ -152,11 +166,11 @@ Rule US 1918 1919 - Mar lastSun 2:00 1:00 D Rule US 1918 1919 - Oct lastSun 2:00 0 S Rule US 1942 only - Feb 9 2:00 1:00 W # War Rule US 1945 only - Aug 14 23:00u 1:00 P # Peace -Rule US 1945 only - Sep lastSun 2:00 0 S +Rule US 1945 only - Sep 30 2:00 0 S Rule US 1967 2006 - Oct lastSun 2:00 0 S Rule US 1967 1973 - Apr lastSun 2:00 1:00 D Rule US 1974 only - Jan 6 2:00 1:00 D -Rule US 1975 only - Feb 23 2:00 1:00 D +Rule US 1975 only - Feb lastSun 2:00 1:00 D Rule US 1976 1986 - Apr lastSun 2:00 1:00 D Rule US 1987 2006 - Apr Sun>=1 2:00 1:00 D Rule US 2007 max - Mar Sun>=8 2:00 1:00 D
walter harms wrote:
i would only cite the current ruling here.
But tzdb's "Rule US" lines also cover historical data, and so rely on the older citations. The proposed comments don't summarize all the US DST legislation, only the parts that matter to tzdb's "Rule US" lines. Besides, it seemed a little funny that tzdb already has extensive legal citations for countries ranging from Uruguay to the UK, while not bothering to provide them for the US.
On 2019-06-04 15:05, Josh Lee wrote:
On Tue, Jun 4, 2019 at 3:08 AM Paul Eggert <eggert@cs.ucla.edu> wrote:
+# * Public Law 109-50 (2005-08-08), effective 2007, moved the spring-forward Should be 109-58. 94-434 also seems wrong.
https://www.congress.gov/bill/93rd-congress/house-bill/16102 PL 93-434 H.R.16102 - A bill to amend the Emergency Daylight Saving Time Energy Conservation Act of 1973 to exempt from its provisions the period from the last Sunday in October 1974, through the last Sunday in February 1975. 10/05/1974 Might want to expand the table to contain entries like the above for reference and checking, as with other jurisdictions where few assumptions are made. Most of us have insufficient contact with how our countries' laws are catalogued to have details at hand. -- 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.
Thanks for the corrections; I installed the attached. I wanted to cite Public Law as opposed to legislative history or US Code, as that's the most relevant if we just want to see what the finally-passed law was. Unfortunately, the US government has not made older public laws available on the Internet, so this patch adds a URL for the most recent public law (which is new enough to be available online) and leaves the rest of the citations alone. On 6/4/19 2:47 PM, Brian Inglis wrote:
Might want to expand the table to contain entries like the above for reference and checking, as with other jurisdictions where few assumptions are made. Most of us have insufficient contact with how our countries' laws are catalogued to have details at hand.
The older public laws are provided in PDF form by the The Law Library of the Library of Congress, no? e.g. PL 65-107 is https://www.loc.gov/law/help/statutes-at-large/65th-congress/session-2/c65s2... On Wed, Jun 5, 2019 at 10:09 PM Paul Eggert <eggert@cs.ucla.edu> wrote:
Thanks for the corrections; I installed the attached.
I wanted to cite Public Law as opposed to legislative history or US Code, as that's the most relevant if we just want to see what the finally-passed law was. Unfortunately, the US government has not made older public laws available on the Internet, so this patch adds a URL for the most recent public law (which is new enough to be available online) and leaves the rest of the citations alone.
On 6/4/19 2:47 PM, Brian Inglis wrote:
Might want to expand the table to contain entries like the above for reference and checking, as with other jurisdictions where few assumptions are made. Most of us have insufficient contact with how our countries' laws are catalogued to have details at hand.
On 2019-06-06 02:08, Andrew Paprocki wrote:
On Wed, Jun 5, 2019 at 10:09 PM Paul Eggert wrote:
On 6/4/19 2:47 PM, Brian Inglis wrote:
Might want to expand the table to contain entries like the above for reference and checking, as with other jurisdictions where few assumptions are made. Most of us have insufficient contact with how our countries' laws are catalogued to have details at hand.>> Thanks for the corrections; I installed the attached. I wanted to cite Public Law as opposed to legislative history or US Code, as that's the most relevant if we just want to see what the finally-passed law was. Unfortunately, the US government has not made older public laws available on the Internet, so this patch adds a URL for the most recent public law (which is new enough to be available online) and leaves the rest of the citations alone. The older public laws are provided in PDF form by the The Law Library of the Library of Congress, no? e.g. PL 65-107 is
https://www.loc.gov/law/help/statutes-at-large/65th-congress/session-2/c65s2... [LoC has punted to GPO (and Congress) web sites for later sessions: aren't LoC meant to be the Library of Record and Archive including Congressional Records? Isn't archive redundancy good? Web sites are not national archive libraries!] Okay, let's run these acts down and post them for future reference. Your first reference needs tweaked: -# * Public Law 65-107 (1918-03-19) implemented standard and daylight saving +# * Public Law 65-106 (1918-03-19) implemented standard and daylight saving +# time for the first time across the US, springing forward on March's last +# Sunday and falling back on October's last Sunday. according to: https://www.loc.gov/law/help/statutes-at-large/65th-congress.php was 65th Congress, 2nd Session, 1918, S.1854, Chapter 24 An Act To save daylight and to provide standard time for the United States https://www.loc.gov/law/help/statutes-at-large/65th-congress/session-2/c65s2... +# * Public Law 66-40 (1919-08-20) repealed DST on October 1919's last Sunday. https://www.loc.gov/law/help/statutes-at-large/66th-congress.php was 66th Congress, 1st Session, 1919, H.R.3854, Chapter 51 An Act For the repeal of the daylight-saving law https://www.loc.gov/law/help/statutes-at-large/66th-congress/session-1/c66s1... +# * Public Law 77-403 (1942-01-20) started wartime DST on 1942-02-09. https://www.loc.gov/law/help/statutes-at-large/77th-congress.php was 77th Congress, 2nd Session, 1942, S.2160, Chapter 7 An Act To promote the national security and defense by establishing daylight saving time https://www.loc.gov/law/help/statutes-at-large/77th-congress/session-2/c77s2... +# * Public Law 79-187 (1945-09-25) ended wartime DST on 1945-09-30. https://www.loc.gov/law/help/statutes-at-large/79th-congress.php was 79th Congress, 1st Session, 1945-1946, H.R.3974, Chapter 388 An Act To provide for termination of daylight saving time https://www.loc.gov/law/help/statutes-at-large/79th-congress/session-1/c79s1... +# * Public Law 89-387 (1966-04-13) reinstituted a national standard for DST, +# from April's last Sunday to October's last Sunday, effective 1967. https://www.govinfo.gov/app/collection/statute/1966/publiclaw was 89th Congress, 2nd Session, 1966, S.1404, Volume 80 Statute 107 An Act To promote the observance of a uniform system of time throughout the United States https://www.govinfo.gov/content/pkg/STATUTE-80/pdf/STATUTE-80-Pg107.pdf +# * Public Law 93-182 (1973-12-15) moved the 1974 spring-forward to 01-06. https://www.govinfo.gov/app/collection/statute/1973/publiclaw was 93rd Congress, 1st Session, 1973, H.R.11324, Volume 87 Statute 707 Daylight Saving Time Act https://www.congress.gov/public-laws/93rd-congress An Act To provide for daylight saving time on a year-round basis for a two-year trial period, and to require the Federal Communications Commission to permit certain daytime broadcast stations to operate before local sunrise. https://www.govinfo.gov/content/pkg/STATUTE-87/pdf/STATUTE-87-Pg707.pdf +# * Public Law 93-434 (1974-10-05) moved the 1975 spring-forward to +# February's last Sunday. https://www.govinfo.gov/app/collection/statute/1974/publiclaw was 93rd Congress, 2nd Session, 1974, H.R.16102, Volume 88 Statute 1209 https://www.congress.gov/public-laws/93rd-congress An Act To amend the Emergency Daylight Saving Time Energy Conservation Act of 1973 to exempt from its provisions the period from the last Sunday in October 1974, through the last Sunday in February 1975 https://www.govinfo.gov/content/pkg/STATUTE-88/pdf/STATUTE-88-Pg1209.pdf +# * Public Law 99-359 (1986-07-08) moved the spring-forward to April's first +# Sunday. https://www.govinfo.gov/app/collection/statute/1986/publiclaw was 99th Congress, 2nd Session, 1986, S.2180, Volume 100 Statute 764 https://www.congress.gov/public-laws/99th-congress An Act To authorize appropriations for activities under the Federal Fire Prevention and Control Act of 1974 https://www.govinfo.gov/content/pkg/STATUTE-100/pdf/STATUTE-100-Pg764.pdf [pork barrel with DST change and daytime AM station broadcast hours tweaks!] +# * Public Law 109-58 (2005-08-08), effective 2007, moved the spring-forward +# to March's second Sunday and the fall-back to November's first Sunday. +# All transitions are at 02:00 local time. https://www.govinfo.gov/app/collection/statute/2005/publiclaw was 109th Congress, 1st Session, 2005, H.R.6, Volume 119 Statute 594 https://www.congress.gov/public-laws/109th-congress Energy Policy Act of 2005 https://www.congress.gov/bill/109th-congress/house-bill/6/text https://www.govinfo.gov/content/pkg/STATUTE-119/html/STATUTE-119-Pg594.htm https://www.congress.gov/109/plaws/publ58/PLAW-109publ58.htm https://www.govinfo.gov/content/pkg/STATUTE-119/pdf/STATUTE-119-Pg594.pdf https://www.congress.gov/109/plaws/publ58/PLAW-109publ58.pdf -- 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.
On 6/6/19 10:34 AM, Brian Inglis wrote:
[LoC has punted to GPO (and Congress) web sites for later sessions: aren't LoC meant to be the Library of Record and Archive including Congressional Records? Isn't archive redundancy good? Web sites are not national archive libraries!]
I too was dismayed by the disorganization. There is no single federal repository of the text of everything passed by Congress and signed into law by the President. Anyway, thanks for that correction and the URLs. I installed the attached.
participants (5)
-
Andrew Paprocki -
Brian Inglis -
Josh Lee -
Paul Eggert -
walter harms