419 Rule Denver 1920 1921 - Mar lastSun 2:00 1:00 D
420 Rule Denver 1920 only - Oct lastSun 2:00 0 S
421 Rule Denver 1921 only - May 22 2:00 0 S
422 Rule Denver 1965 1966 - Apr lastSun 2:00 1:00 D
423 Rule Denver 1965 1966 - Oct lastSun 2:00 0 S
424 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
425 Zone America/Denver -6:59:56 - LMT 1883 Nov 18 12:00:04
426 -7:00 US M%sT 1920
427 -7:00 Denver M%sT 1942
428 -7:00 US M%sT 1946
429 -7:00 Denver M%sT 1967
430 -7:00 US M%sT
431
432 # US Pacific time, represented by Los Angeles
433 #
434 # California, northern Idaho (Benewah, Bonner, Boundary, Clearwater,
435 # Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties, Idaho county
436 # north of the Salmon River, and the towns of Burgdorf and Warren),
437 # Nevada (except West Wendover), Oregon (except the northern 3/4 of
438 # Malheur county), and Washington
439 #
440 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
441 Rule CA 1948 only - Mar 14 2:00 1:00 D
442 Rule CA 1949 only - Jan 1 2:00 0 S
443 Rule CA 1950 1966 - Apr lastSun 2:00 1:00 D
444 Rule CA 1950 1961 - Sep lastSun 2:00 0 S
445 Rule CA 1962 1966 - Oct lastSun 2:00 0 S
446 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
447 Zone America/Los_Angeles -7:52:58 - LMT 1883 Nov 18 12:07:02
448 -8:00 US P%sT 1946
449 -8:00 CA P%sT 1967
450 -8:00 US P%sT
451
452 # Alaska
453 # AK%sT is the modern abbreviation for -9:00 per USNO.
454 #
455 # From Paul Eggert (2001-05-30):
456 # Howse writes that Alaska switched from the Julian to the Gregorian calendar,
457 # and from east-of-GMT to west-of-GMT days, when the US bought it from Russia.
458 # This was on 1867-10-18, a Friday; the previous day was 1867-10-06 Julian,
459 # also a Friday. Include only the time zone part of this transition,
460 # ignoring the switch from Julian to Gregorian, since we can't represent
461 # the Julian calendar.
462 #
463 # As far as we know, none of the exact locations mentioned below were
3287 # St Vincent and the Grenadines
3288 # See America/Port_of_Spain.
3289
3290 # Turks and Caicos
3291 #
3292 # From Chris Dunn in
3293 # http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=415007
3294 # (2007-03-15): In the Turks & Caicos Islands (America/Grand_Turk) the
3295 # daylight saving dates for time changes have been adjusted to match
3296 # the recent U.S. change of dates.
3297 #
3298 # From Brian Inglis (2007-04-28):
3299 # http://www.turksandcaicos.tc/calendar/index.htm [2007-04-26]
3300 # there is an entry for Nov 4 "Daylight Savings Time Ends 2007" and three
3301 # rows before that there is an out of date entry for Oct:
3302 # "Eastern Standard Times Begins 2007
3303 # Clocks are set back one hour at 2:00 a.m. local Daylight Saving Time"
3304 # indicating that the normal ET rules are followed.
3305 #
3306 # From Paul Eggert (2014-08-19):
3307 # The 2014-08-13 Cabinet meeting decided to stay on UTC-4 year-round. See:
3308 # http://tcweeklynews.com/daylight-savings-time-to-be-maintained-p5353-127.htm
3309 # Model this as a switch from EST/EDT to AST ...
3310 # From Chris Walton (2014-11-04):
3311 # ... the TCI government appears to have delayed the switch to
3312 # "permanent daylight saving time" by one year....
3313 # http://tcweeklynews.com/time-change-to-go-ahead-this-november-p5437-127.htm
3314 #
3315 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
3316 Zone America/Grand_Turk -4:44:32 - LMT 1890
3317 -5:07:11 - KMT 1912 Feb # Kingston Mean Time
3318 -5:00 - EST 1979
3319 -5:00 US E%sT 2015 Nov Sun>=1 2:00
3320 -4:00 - AST
3321
3322 # British Virgin Is
3323 # Virgin Is
3324 # See America/Port_of_Spain.
3325
3326
3327 # Local Variables:
|
419 Rule Denver 1920 1921 - Mar lastSun 2:00 1:00 D
420 Rule Denver 1920 only - Oct lastSun 2:00 0 S
421 Rule Denver 1921 only - May 22 2:00 0 S
422 Rule Denver 1965 1966 - Apr lastSun 2:00 1:00 D
423 Rule Denver 1965 1966 - Oct lastSun 2:00 0 S
424 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
425 Zone America/Denver -6:59:56 - LMT 1883 Nov 18 12:00:04
426 -7:00 US M%sT 1920
427 -7:00 Denver M%sT 1942
428 -7:00 US M%sT 1946
429 -7:00 Denver M%sT 1967
430 -7:00 US M%sT
431
432 # US Pacific time, represented by Los Angeles
433 #
434 # California, northern Idaho (Benewah, Bonner, Boundary, Clearwater,
435 # Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties, Idaho county
436 # north of the Salmon River, and the towns of Burgdorf and Warren),
437 # Nevada (except West Wendover), Oregon (except the northern 3/4 of
438 # Malheur county), and Washington
439
440 # From Paul Eggert (2016-08-20):
441 # In early February 1948, in response to California's electricity shortage,
442 # PG&E changed power frequency from 60 to 59.5 Hz during daylight hours,
443 # causing electric clocks to lose six minutes per day. (This did not change
444 # legal time, and is not part of the data here.) See:
445 # Ross SA. An energy crisis from the past: Northern California in 1948.
446 # Working Paper No. 8, Institute of Governmental Studies, UC Berkeley,
447 # 1973-11. http://escholarship.org/uc/item/8x22k30c
448 #
449 # In another measure to save electricity, DST was instituted from 1948-03-14
450 # at 02:01 to 1949-01-16 at 02:00, with the governor having the option to move
451 # the fallback transition earlier. See pages 3-4 of:
452 # http://clerk.assembly.ca.gov/sites/clerk.assembly.ca.gov/files/archive/Statutes/1948/48Vol1_Chapters.pdf
453 #
454 # In response:
455 #
456 # Governor Warren received a torrent of objecting mail, and it is not too much
457 # to speculate that the objections to Daylight Saving Time were one important
458 # factor in the defeat of the Dewey-Warren Presidential ticket in California.
459 # -- Ross, p 25
460 #
461 # On December 8 the governor exercised the option, setting the date to January 1
462 # (LA Times 1948-12-09). The transition time was 02:00 (LA Times 1949-01-01).
463 #
464 # Despite the controversy, in 1949 California voters approved Proposition 12,
465 # which established DST from April's last Sunday at 01:00 until September's
466 # last Sunday at 02:00. This was amended by 1962's Proposition 6, which changed
467 # the fall-back date to October's last Sunday. See:
468 # http://repository.uchastings.edu/cgi/viewcontent.cgi?article=1501&context=ca_ballot_props
469 # http://repository.uchastings.edu/cgi/viewcontent.cgi?article=1636&context=ca_ballot_props
470 #
471 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
472 Rule CA 1948 only - Mar 14 2:01 1:00 D
473 Rule CA 1949 only - Jan 1 2:00 0 S
474 Rule CA 1950 1966 - Apr lastSun 1:00 1:00 D
475 Rule CA 1950 1961 - Sep lastSun 2:00 0 S
476 Rule CA 1962 1966 - Oct lastSun 2:00 0 S
477 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
478 Zone America/Los_Angeles -7:52:58 - LMT 1883 Nov 18 12:07:02
479 -8:00 US P%sT 1946
480 -8:00 CA P%sT 1967
481 -8:00 US P%sT
482
483 # Alaska
484 # AK%sT is the modern abbreviation for -9:00 per USNO.
485 #
486 # From Paul Eggert (2001-05-30):
487 # Howse writes that Alaska switched from the Julian to the Gregorian calendar,
488 # and from east-of-GMT to west-of-GMT days, when the US bought it from Russia.
489 # This was on 1867-10-18, a Friday; the previous day was 1867-10-06 Julian,
490 # also a Friday. Include only the time zone part of this transition,
491 # ignoring the switch from Julian to Gregorian, since we can't represent
492 # the Julian calendar.
493 #
494 # As far as we know, none of the exact locations mentioned below were
3318 # St Vincent and the Grenadines
3319 # See America/Port_of_Spain.
3320
3321 # Turks and Caicos
3322 #
3323 # From Chris Dunn in
3324 # http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=415007
3325 # (2007-03-15): In the Turks & Caicos Islands (America/Grand_Turk) the
3326 # daylight saving dates for time changes have been adjusted to match
3327 # the recent U.S. change of dates.
3328 #
3329 # From Brian Inglis (2007-04-28):
3330 # http://www.turksandcaicos.tc/calendar/index.htm [2007-04-26]
3331 # there is an entry for Nov 4 "Daylight Savings Time Ends 2007" and three
3332 # rows before that there is an out of date entry for Oct:
3333 # "Eastern Standard Times Begins 2007
3334 # Clocks are set back one hour at 2:00 a.m. local Daylight Saving Time"
3335 # indicating that the normal ET rules are followed.
3336 #
3337 # From Paul Eggert (2014-08-19):
3338 # The 2014-08-13 Cabinet meeting decided to stay on UT -04 year-round. See:
3339 # http://tcweeklynews.com/daylight-savings-time-to-be-maintained-p5353-127.htm
3340 # Model this as a switch from EST/EDT to AST ...
3341 # From Chris Walton (2014-11-04):
3342 # ... the TCI government appears to have delayed the switch to
3343 # "permanent daylight saving time" by one year....
3344 # http://tcweeklynews.com/time-change-to-go-ahead-this-november-p5437-127.htm
3345 #
3346 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
3347 Zone America/Grand_Turk -4:44:32 - LMT 1890
3348 -5:07:11 - KMT 1912 Feb # Kingston Mean Time
3349 -5:00 - EST 1979
3350 -5:00 US E%sT 2015 Nov Sun>=1 2:00
3351 -4:00 - AST
3352
3353 # British Virgin Is
3354 # Virgin Is
3355 # See America/Port_of_Spain.
3356
3357
3358 # Local Variables:
|