# @(#)northamerica	8.16

# <pre>

# also includes Central America and the Caribbean

# This data is by no means authoritative; if you think you know better,

# go ahead and edit the file (and please send any changes to

# tz@elsie.nci.nih.gov for general use in the future).

# From Paul Eggert (1999-03-22):

# A reliable and entertaining source about time zones is

# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).

###############################################################################

# United States

# From Paul Eggert (1999-03-31):

# Howse writes (pp 121-125) that time zones were invented by

# Professor Charles Ferdinand Dowd (1825-1904),

# Principal of Temple Grove Ladies' Seminary (Saratoga Springs, NY).

# His pamphlet ``A System of National Time for Railroads'' (1870)

# was the result of his proposals at the Convention of Railroad Trunk Lines

# in New York City (1869-10).  His 1870 proposal was based on Washington, DC,

# but in 1872-05 he moved the proposed origin to Greenwich.

# His proposal was adopted by the railroads on 1883-11-18 at 12:00,

# and the most of the country soon followed suit.

# From Paul Eggert (2005-04-16):

# That 1883 transition occurred at 12:00 new time, not at 12:00 old time.

# See p 46 of David Prerau, Seize the daylight, Thunder's Mouth Press (2005).

# From Paul Eggert (2006-03-22):

# A good source for time zone historical data in the US is

# Thomas G. Shanks, The American Atlas (5th edition),

# San Diego: ACS Publications, Inc. (1991).

# Make sure you have the errata sheet; the book is somewhat useless without it.

# It is the source for most of the pre-1991 US entries below.

# From Paul Eggert (2001-03-06):

# Daylight Saving Time was first suggested as a joke by Benjamin Franklin

# in his whimsical essay ``An Economical Project for Diminishing the Cost

# of Light'' published in the Journal de Paris (1784-04-26).

# Not everyone is happy with the results:

#

#	I don't really care how time is reckoned so long as there is some

#	agreement about it, but I object to being told that I am saving

#	daylight when my reason tells me that I am doing nothing of the kind.

#	I even object to the implication that I am wasting something

#	valuable if I stay in bed after the sun has risen.  As an admirer

#	of moonlight I resent the bossy insistence of those who want to

#	reduce my time for enjoying it.  At the back of the Daylight Saving

#	scheme I detect the bony, blue-fingered hand of Puritanism, eager

#	to push people into bed earlier, and get them up earlier, to make

#	them healthy, wealthy and wise in spite of themselves.

#

#	-- Robertson Davies, The diary of Samuel Marchbanks,

#	   Clarke, Irwin (1947), XIX, Sunday

#

# For more about the first ten years of DST in the United States, see

# Robert Garland's <a href="http://www.clpgh.org/exhibit/dst.html">

# Ten years of daylight saving from the Pittsburgh standpoint

# (Carnegie Library of Pittsburgh, 1927)</a>.

#

# Shanks says that DST was called "War Time" in the US in 1918 and 1919.

# However, DST was imposed by the Standard Time Act of 1918, which

# 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 Arthur David Olson:

# Before the Uniform Time Act of 1966 took effect in 1967, observance of

# Daylight Saving Time in the US was by local option, except during wartime.

# From Arthur David Olson (2000-09-25):

# Last night I heard part of a rebroadcast of a 1945 Arch Oboler radio drama.

# In the introduction, Oboler spoke of "Eastern Peace Time."

# An AltaVista search turned up

# <a href="http://rowayton.org/rhs/hstaug45.html">:

# "When the time is announced over the radio now, it is 'Eastern Peace

# Time' instead of the old familiar 'Eastern War Time.'  Peace is wonderful."

# </a> (August 1945) by way of confirmation.

# From Joseph Gallant citing

# George H. Douglas, _The Early Days of Radio Broadcasting_ (1987):

# At 7 P.M. (Eastern War Time) [on 1945-08-14], the networks were set

# to switch to London for Attlee's address, but the American people

# never got to hear his speech live. According to one press account,

# CBS' Bob Trout was first to announce the word of Japan's surrender,

# but a few seconds later, NBC, ABC and Mutual also flashed the word

# of surrender, all of whom interrupting the bells of Big Ben in

# London which were to precede Mr. Attlee's speech.

# From Paul Eggert (2003-02-09): It was Robert St John, not Bob Trout.  From

# Myrna Oliver's obituary of St John on page B16 of today's Los Angeles Times:

#

# ... a war-weary U.S. clung to radios, awaiting word of Japan's surrender.

# Any announcement from Asia would reach St. John's New York newsroom on a

# wire service teletype machine, which had prescribed signals for major news.

# Associated Press, for example, would ring five bells before spewing out

# typed copy of an important story, and 10 bells for news "of transcendental

# importance."

#

# On Aug. 14, stalling while talking steadily into the NBC networks' open

# microphone, St. John heard five bells and waited only to hear a sixth bell,

# before announcing confidently: "Ladies and gentlemen, World War II is over.

# The Japanese have agreed to our surrender terms."

#

# He had scored a 20-second scoop on other broadcasters.

# From Arthur David Olson (2005-08-22):

# Paul has been careful to use the "US" rules only in those locations

# that are part of the United States; this reflects the real scope of

# U.S. government action.  So even though the "US" rules have changed

# in the latest release, other countries won't be affected.

# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S

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	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	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

Rule	US	2007	max	-	Nov	Sun>=1	2:00	0	S

# From Arthur David Olson, 2005-12-19

# We generate the files specified below to guard against old files with

# obsolete information being left in the time zone binary directory.

# We limit the list to names that have appeared in previous versions of

# this time zone package.

# We do these as separate Zones rather than as Links to avoid problems if

# a particular place changes whether it observes DST.

# We put these specifications here in the northamerica file both to

# increase the chances that they'll actually get compiled and to

# avoid the need to duplicate the US rules in another file.

# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]

Zone	EST		 -5:00	-	EST

Zone	MST		 -7:00	-	MST

Zone	HST		-10:00	-	HST

Zone	EST5EDT		 -5:00	US	E%sT

Zone	CST6CDT		 -6:00	US	C%sT

Zone	MST7MDT		 -7:00	US	M%sT

Zone	PST8PDT		 -8:00	US	P%sT

# From Bob Devine (1988-01-28):

# ...Alaska (and Hawaii) had the timezone names changed in 1967.

#    old			 new

#    Pacific Standard Time(PST)  -same-

#    Yukon Standard Time(YST)    -same-

#    Central Alaska S.T. (CAT)   Alaska-Hawaii St[an]dard Time (AHST)

#    Nome Standard Time (NT)     Bering Standard Time (BST)

#

# ...Alaska's timezone lines were redrawn in 1983 to give only 2 tz.

#    The YST zone now covers nearly all of the state, AHST just part

#    of the Aleutian islands.   No DST.

# From Paul Eggert (1995-12-19):

# The tables below use `NST', not `NT', for Nome Standard Time.

# I invented `CAWT' for Central Alaska War Time.

# From U. S. Naval Observatory (1989-01-19):

# USA  EASTERN       5 H  BEHIND UTC    NEW YORK, WASHINGTON

# USA  EASTERN       4 H  BEHIND UTC    APR 3 - OCT 30

# USA  CENTRAL       6 H  BEHIND UTC    CHICAGO, HOUSTON

# USA  CENTRAL       5 H  BEHIND UTC    APR 3 - OCT 30

# USA  MOUNTAIN      7 H  BEHIND UTC    DENVER

# USA  MOUNTAIN      6 H  BEHIND UTC    APR 3 - OCT 30

# USA  PACIFIC       8 H  BEHIND UTC    L.A., SAN FRANCISCO

# USA  PACIFIC       7 H  BEHIND UTC    APR 3 - OCT 30

# USA  ALASKA STD    9 H  BEHIND UTC    MOST OF ALASKA     (AKST)

# USA  ALASKA STD    8 H  BEHIND UTC    APR 3 - OCT 30 (AKDT)

# USA  ALEUTIAN     10 H  BEHIND UTC    ISLANDS WEST OF 170W

# USA  - " -         9 H  BEHIND UTC    APR 3 - OCT 30

# USA  HAWAII       10 H  BEHIND UTC

# USA  BERING       11 H  BEHIND UTC    SAMOA, MIDWAY

# From Arthur David Olson (1989-01-21):

# The above dates are for 1988.

# Note the "AKST" and "AKDT" abbreviations, the claim that there's

# no DST in Samoa, and the claim that there is DST in Alaska and the

# Aleutians.

# From Arthur David Olson (1988-02-13):

# Legal standard time zone names, from United States Code (1982 Edition and

# Supplement III), Title 15, Chapter 6, Section 260 and forward.  First, names

# up to 1967-04-01 (when most provisions of the Uniform Time Act of 1966

# took effect), as explained in sections 263 and 261:

#	(none)

#	United States standard eastern time

#	United States standard mountain time

#	United States standard central time

#	United States standard Pacific time

#	(none)

#	United States standard Alaska time

#	(none)

# Next, names from 1967-04-01 until 1983-11-30 (the date for

# public law 98-181):

#	Atlantic standard time

#	eastern standard time

#	central standard time

#	mountain standard time

#	Pacific standard time

#	Yukon standard time

#	Alaska-Hawaii standard time

#	Bering standard time

# And after 1983-11-30:

#	Atlantic standard time

#	eastern standard time

#	central standard time

#	mountain standard time

#	Pacific standard time

#	Alaska standard time

#	Hawaii-Aleutian standard time

#	Samoa standard time

# The law doesn't give abbreviations.

#

# From Paul Eggert (2000-01-08), following a heads-up from Rives McDow:

# Public law 106-564 (2000-12-23) introduced the abbreviation

# "Chamorro Standard Time" for time in Guam and the Northern Marianas.

# See the file "australasia".

# From Arthur David Olson, 2005-08-09

# The following was signed into law on 2005-08-08.

#

# H.R. 6, Energy Policy Act of 2005, SEC. 110. DAYLIGHT SAVINGS.

#   (a) Amendment- Section 3(a) of the Uniform Time Act of 1966 (15

#   U.S.C. 260a(a)) is amended--

#     (1) by striking `first Sunday of April' and inserting `second

#     Sunday of March'; and

#     (2) by striking `last Sunday of October' and inserting `first

#     Sunday of November'.

#   (b) Effective Date- Subsection (a) shall take effect 1 year after the

#   date of enactment of this Act or March 1, 2007, whichever is later.

#   (c) Report to Congress- Not later than 9 months after the effective

#   date stated in subsection (b), the Secretary shall report to Congress

#   on the impact of this section on energy consumption in the United

#   States.

#   (d) Right to Revert- Congress retains the right to revert the

#   Daylight Saving Time back to the 2005 time schedules once the

#   Department study is complete.

# US eastern time, represented by New York

# Connecticut, Delaware, District of Columbia, most of Florida,

# Georgia, southeast Indiana (Dearborn and Ohio counties), eastern Kentucky

# (except America/Kentucky/Louisville below), Maine, Maryland, Massachusetts,

# New Hampshire, New Jersey, New York, North Carolina, Ohio,

# Pennsylvania, Rhode Island, South Carolina, eastern Tennessee,

# Vermont, Virginia, West Virginia

# From Dave Cantor (2004-11-02):

# Early this summer I had the occasion to visit the Mount Washington

# Observatory weather station atop (of course!) Mount Washington [, NH]....

# One of the staff members said that the station was on Eastern Standard Time

# and didn't change their clocks for Daylight Saving ... so that their

# reports will always have times which are 5 hours behind UTC.

# From Paul Eggert (2005-08-26):

# According to today's Huntsville Times

# <http://www.al.com/news/huntsvilletimes/index.ssf?/base/news/1125047783228320.xml&coll=1>

# a few towns on Alabama's "eastern border with Georgia, such as Phenix City

# in Russell County, Lanett in Chambers County and some towns in Lee County,

# set their watches and clocks on Eastern time."  It quotes H.H. "Bubba"

# Roberts, city administrator in Phenix City. as saying "We are in the Central

# time zone, but we do go by the Eastern time zone because so many people work

# in Columbus."

# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER

Rule	NYC	1920	only	-	Mar	lastSun	2:00	1:00	D

Rule	NYC	1920	only	-	Oct	lastSun	2:00	0	S

Rule	NYC	1921	1966	-	Apr	lastSun	2:00	1:00	D

Rule	NYC	1921	1954	-	Sep	lastSun	2:00	0	S

Rule	NYC	1955	1966	-	Oct	lastSun	2:00	0	S

# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]

Zone America/New_York	-4:56:02 -	LMT	1883 Nov 18 12:03:58

			-5:00	US	E%sT	1920

			-5:00	NYC	E%sT	1942

			-5:00	US	E%sT	1946

			-5:00	NYC	E%sT	1967

			-5:00	US	E%sT

# US central time, represented by Chicago

# Alabama, Arkansas, Florida panhandle (Bay, Calhoun, Escambia,

# Gulf, Holmes, Jackson, Okaloosa, Santa Rosa, Walton, and

# Washington counties), Illinois, western Indiana

# (Gibson, Jasper, Lake, LaPorte, Newton, Porter, Posey, Spencer,

# Vanderburgh, and Warrick counties), Iowa, most of Kansas, western

# Kentucky, Louisiana, Minnesota, Mississippi, Missouri, eastern

# Nebraska, eastern North Dakota, Oklahoma, eastern South Dakota,

# western Tennessee, most of Texas, Wisconsin

# From Larry M. Smith (2006-04-26) re Wisconsin:

# http://www.legis.state.wi.us/statutes/Stat0175.pdf ...

# is currently enforced at the 01:00 time of change.  Because the local

# "bar time" in the state corresponds to 02:00, a number of citations

# are issued for the "sale of class 'B' alcohol after prohibited

# hours" within the deviated hour of this change every year....

#

# From Douglas R. Bomberg (2007-03-12):

# Wisconsin has enacted (nearly eleventh-hour) legislation to get WI

# Statue 175 closer in synch with the US Congress' intent....

# http://www.legis.state.wi.us/2007/data/acts/07Act3.pdf

# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER

Rule	Chicago	1920	only	-	Jun	13	2:00	1:00	D

Rule	Chicago	1920	1921	-	Oct	lastSun	2:00	0	S

Rule	Chicago	1921	only	-	Mar	lastSun	2:00	1:00	D

Rule	Chicago	1922	1966	-	Apr	lastSun	2:00	1:00	D

Rule	Chicago	1922	1954	-	Sep	lastSun	2:00	0	S

Rule	Chicago	1955	1966	-	Oct	lastSun	2:00	0	S

# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]

Zone America/Chicago	-5:50:36 -	LMT	1883 Nov 18 12:09:24

			-6:00	US	C%sT	1920

			-6:00	Chicago	C%sT	1936 Mar  1 2:00

			-5:00	-	EST	1936 Nov 15 2:00

			-6:00	Chicago	C%sT	1942

			-6:00	US	C%sT	1946

			-6:00	Chicago	C%sT	1967

			-6:00	US	C%sT

# Oliver County, ND switched from mountain to central time on 1992-10-25.

Zone America/North_Dakota/Center -6:45:12 - LMT	1883 Nov 18 12:14:48

			-7:00	US	M%sT	1992 Oct 25 02:00

			-6:00	US	C%sT

# Morton County, ND, switched from mountain to central time on

# 2003-10-26, except for the area around Mandan which was already central time.

# See <http://dmses.dot.gov/docimages/p63/135818.pdf>.

# Officially this switch also included part of Sioux County, and

# Jones, Mellette, and Todd Counties in South Dakota;

# but in practice these other counties were already observing central time.

# See <http://www.epa.gov/fedrgstr/EPA-IMPACT/2003/October/Day-28/i27056.htm>.

Zone America/North_Dakota/New_Salem -6:45:39 - LMT 1883 Nov 18 12:14:21

			-7:00	US	M%sT	2003 Oct 26 02:00

			-6:00	US	C%sT

# US mountain time, represented by Denver

#

# Colorado, far western Kansas, Montana, western

# Nebraska, Nevada border (Jackpot, Owyhee, and Mountain City),

# New Mexico, southwestern North Dakota, far eastern Oregon,

# western South Dakota, far western Texas (El Paso County, Hudspeth County,

# and Pine Springs and Nickel Creek in Culberson County), Utah, Wyoming

#

# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER

Rule	Denver	1920	1921	-	Mar	lastSun	2:00	1:00	D

Rule	Denver	1920	only	-	Oct	lastSun	2:00	0	S

Rule	Denver	1921	only	-	May	22	2:00	0	S

Rule	Denver	1965	1966	-	Apr	lastSun	2:00	1:00	D

Rule	Denver	1965	1966	-	Oct	lastSun	2:00	0	S

# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]

Zone America/Denver	-6:59:56 -	LMT	1883 Nov 18 12:00:04

			-7:00	US	M%sT	1920

			-7:00	Denver	M%sT	1942

			-7:00	US	M%sT	1946

			-7:00	Denver	M%sT	1967

			-7:00	US	M%sT

# US Pacific time, represented by Los Angeles

#

# California, northern Idaho (Benewah, Bonner, Boundary, Clearwater,

# Idaho, Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties),

# most of Nevada, most of Oregon, and Washington

#

# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER

Rule	CA	1948	only	-	Mar	14	2:00	1:00	D

Rule	CA	1949	only	-	Jan	 1	2:00	0	S

Rule	CA	1950	1966	-	Apr	lastSun	2:00	1:00	D

Rule	CA	1950	1961	-	Sep	lastSun	2:00	0	S

Rule	CA	1962	1966	-	Oct	lastSun	2:00	0	S

# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]

Zone America/Los_Angeles -7:52:58 -	LMT	1883 Nov 18 12:07:02

			-8:00	US	P%sT	1946

			-8:00	CA	P%sT	1967

			-8:00	US	P%sT

# Alaska

# AK%sT is the modern abbreviation for -9:00 per USNO.

#

# From Paul Eggert (2001-05-30):

# Howse writes that Alaska switched from the Julian to the Gregorian calendar,

# and from east-of-GMT to west-of-GMT days, when the US bought it from Russia.

# This was on 1867-10-18, a Friday; the previous day was 1867-10-06 Julian,

# also a Friday.  Include only the time zone part of this transition,

# ignoring the switch from Julian to Gregorian, since we can't represent

# the Julian calendar.

#

# As far as we know, none of the exact locations mentioned below were

# permanently inhabited in 1867 by anyone using either calendar.

# (Yakutat was colonized by the Russians in 1799, but the settlement

# was destroyed in 1805 by a Yakutat-kon war party.)  However, there

# were nearby inhabitants in some cases and for our purposes perhaps

# it's best to simply use the official transition.

#

# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]

Zone America/Juneau	 15:02:19 -	LMT	1867 Oct 18

			 -8:57:41 -	LMT	1900 Aug 20 12:00

			 -8:00	-	PST	1942

			 -8:00	US	P%sT	1946

			 -8:00	-	PST	1969

			 -8:00	US	P%sT	1983 Oct 30 2:00

			 -9:00	US	Y%sT	1983 Nov 30

			 -9:00	US	AK%sT

Zone America/Yakutat	 14:41:05 -	LMT	1867 Oct 18

			 -9:18:55 -	LMT	1900 Aug 20 12:00

			 -9:00	-	YST	1942

			 -9:00	US	Y%sT	1946

			 -9:00	-	YST	1969

			 -9:00	US	Y%sT	1983 Nov 30

			 -9:00	US	AK%sT

Zone America/Anchorage	 14:00:24 -	LMT	1867 Oct 18

			 -9:59:36 -	LMT	1900 Aug 20 12:00

			-10:00	-	CAT	1942

			-10:00	US	CAT/CAWT 1945 Aug 14 23:00u

			-10:00	US	CAT/CAPT 1946 # Peace

			-10:00	-	CAT	1967 Apr

			-10:00	-	AHST	1969

			-10:00	US	AH%sT	1983 Oct 30 2:00

			 -9:00	US	Y%sT	1983 Nov 30

			 -9:00	US	AK%sT

Zone America/Nome	 12:58:21 -	LMT	1867 Oct 18

			-11:01:38 -	LMT	1900 Aug 20 12:00

			-11:00	-	NST	1942

			-11:00	US	N%sT	1946

			-11:00	-	NST	1967 Apr

			-11:00	-	BST	1969

			-11:00	US	B%sT	1983 Oct 30 2:00

			 -9:00	US	Y%sT	1983 Nov 30

			 -9:00	US	AK%sT

Zone America/Adak	 12:13:21 -	LMT	1867 Oct 18

			-11:46:38 -	LMT	1900 Aug 20 12:00

			-11:00	-	NST	1942

			-11:00	US	N%sT	1946

			-11:00	-	NST	1967 Apr

			-11:00	-	BST	1969

			-11:00	US	B%sT	1983 Oct 30 2:00

			-10:00	US	AH%sT	1983 Nov 30

			-10:00	US	HA%sT

# The following switches don't quite make our 1970 cutoff.

#

# Shanks writes that part of southwest Alaska (e.g. Aniak)

# switched from -11:00 to -10:00 on 1968-09-22 at 02:00,

# and another part (e.g. Akiak) made the same switch five weeks later.

#

# From David Flater (2004-11-09):

# In e-mail, 2004-11-02, Ray Hudson, historian/liaison to the Unalaska

# Historic Preservation Commission, provided this information, which

# suggests that Unalaska deviated from statutory time from early 1967

# possibly until 1983:

#

#  Minutes of the Unalaska City Council Meeting, January 10, 1967:

#  "Except for St. Paul and Akutan, Unalaska is the only important

#  location not on Alaska Standard Time.  The following resolution was

#  made by William Robinson and seconded by Henry Swanson:  Be it

#  resolved that the City of Unalaska hereby goes to Alaska Standard

#  Time as of midnight Friday, January 13, 1967 (1 A.M. Saturday,

#  January 14, Alaska Standard Time.)  This resolution was passed with

#  three votes for and one against."

# Hawaii

#

# From Arthur David Olson:

# And then there's Hawaii.

# DST was observed for one day in 1933;

# standard time was changed by half an hour in 1947;

# it's always standard as of 1986.

#

# From Paul Eggert:

# Shanks says the 1933 experiment lasted for three weeks.  Go with Shanks.

#

Zone Pacific/Honolulu	-10:31:26 -	LMT	1900 Jan  1 12:00

			-10:30	-	HST	1933 Apr 30 2:00

			-10:30	1:00	HDT	1933 May 21 2:00

			-10:30	US	H%sT	1947 Jun  8 2:00

			-10:00	-	HST

# Now we turn to US areas that have diverged from the consensus since 1970.

# Arizona mostly uses MST.

# From Paul Eggert (2002-10-20):

#

# The information in the rest of this paragraph is derived from the

# <a href="http://www.dlapr.lib.az.us/links/daylight.htm">

# Daylight Saving Time web page (2002-01-23)</a> maintained by the

# Arizona State Library, Archives and Public Records.

# Between 1944-01-01 and 1944-04-01 the State of Arizona used standard

# time, but by federal law railroads, airlines, bus lines, military

# personnel, and some engaged in interstate commerce continued to

# observe war (i.e., daylight saving) time.  The 1944-03-17 Phoenix

# Gazette says that was the date the law changed, and that 04-01 was

# the date the state's clocks would change.  In 1945 the State of

# Arizona used standard time all year, again with exceptions only as

# mandated by federal law.  Arizona observed DST in 1967, but Arizona

# Laws 1968, ch. 183 (effective 1968-03-21) repealed DST.

#

# Shanks says the 1944 experiment came to an end on 1944-03-17.

# Go with the Arizona State Library instead.

Zone America/Phoenix	-7:28:18 -	LMT	1883 Nov 18 11:31:42

			-7:00	US	M%sT	1944 Jan  1 00:01

			-7:00	-	MST	1944 Apr  1 00:01

			-7:00	US	M%sT	1944 Oct  1 00:01

			-7:00	-	MST	1967

			-7:00	US	M%sT	1968 Mar 21

			-7:00	-	MST

# From Arthur David Olson (1988-02-13):

# A writer from the Inter Tribal Council of Arizona, Inc.,

# notes in private correspondence dated 1987-12-28 that "Presently, only the

# Navajo Nation participates in the Daylight Saving Time policy, due to its

# large size and location in three states."  (The "only" means that other

# tribal nations don't use DST.)

Link America/Denver America/Shiprock

# Southern Idaho (Ada, Adams, Bannock, Bear Lake, Bingham, Blaine,

# Boise, Bonneville, Butte, Camas, Canyon, Caribou, Cassia, Clark,

# Custer, Elmore, Franklin, Fremont, Gem, Gooding, Jefferson, Jerome,