indiana.txt

# Indiana
#
# For a map of Indiana's time zone regions, see:
# <a href="http://www.mccsc.edu/time.html">
# What time is it in Indiana?
# </a> (2006-03-01)
#
# From Paul Eggert (2007-08-17):
# Since 1970, most of Indiana has been like America/Indiana/Indianapolis,
# with the following exceptions:
#
# - Gibson, Jasper, Lake, LaPorte, Newton, Porter, Posey, Spencer,
#   Vandenburgh, and Warrick counties have been like America/Chicago.
#
# - Dearborn and Ohio counties have been like America/New_York.
#
# - Clark, Floyd, and Harrison counties have been like
#   America/Kentucky/Louisville.
#
# - Crawford, Daviess, Dubois, Knox, Martin, Perry, Pike, Pulaski, Starke,
#   and Switzerland counties have their own time zone histories as noted below.
#
# Shanks partitioned Indiana into 345 regions, each with its own time history,
# and wrote "Even newspaper reports present contradictory information."
# Those Hoosiers!  Such a flighty and changeable people!
# Fortunately, most of the complexity occurred before our cutoff date of 1970.
#
# Other than Indianapolis, the Indiana place names are so nondescript
# that they would be ambiguous if we left them at the 'America' level.
# So we reluctantly put them all in a subdirectory 'America/Indiana'.

# From Paul Eggert (2005-08-16):
# http://www.mccsc.edu/time.html says that Indiana will use DST starting 2006.

# From Nathan Stratton Treadway (2006-03-30):
# http://www.dot.gov/affairs/dot0406.htm [3705 B]
# From Deborah Goldsmith (2006-01-18):
# http://dmses.dot.gov/docimages/pdf95/382329_web.pdf [2.9 MB]
# From Paul Eggert (2006-01-20):
# It says "DOT is relocating the time zone boundary in Indiana to move Starke,
# Pulaski, Knox, Daviess, Martin, Pike, Dubois, and Perry Counties from the
# Eastern Time Zone to the Central Time Zone.... The effective date of
# this rule is 2:OO a.m. EST Sunday, April 2, 2006, which is the
# changeover date from standard time to Daylight Saving Time."
# Strictly speaking, this means the affected counties will change their
# clocks twice that night, but this obviously is in error.  The intent
# is that 01:59:59 EST be followed by 02:00:00 CDT.

# From Gwillim Law (2007-02-10):
# The Associated Press has been reporting that Pulaski County, Indiana is
# going to switch from Central to Eastern Time on March 11, 2007....
# http://www.indystar.com/apps/pbcs.dll/article?AID=/20070207/LOCAL190108/702070524/0/LOCAL

# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
Rule Indianapolis 1941	only	-	Jun	22	2:00	1:00	D
Rule Indianapolis 1941	1954	-	Sep	lastSun	2:00	0	S
Rule Indianapolis 1946	1954	-	Apr	lastSun	2:00	1:00	D
# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
Zone America/Indiana/Indianapolis -5:44:38 - LMT 1883 Nov 18 12:15:22
			-6:00	US	C%sT	1920
			-6:00 Indianapolis C%sT	1942
			-6:00	US	C%sT	1946
			-6:00 Indianapolis C%sT	1955 Apr 24 2:00
			-5:00	-	EST	1957 Sep 29 2:00
			-6:00	-	CST	1958 Apr 27 2:00
			-5:00	-	EST	1969
			-5:00	US	E%sT	1971
			-5:00	-	EST	2006
			-5:00	US	E%sT
#
# Eastern Crawford County, Indiana, left its clocks alone in 1974,
# as well as from 1976 through 2005.
# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
Rule	Marengo	1951	only	-	Apr	lastSun	2:00	1:00	D
Rule	Marengo	1951	only	-	Sep	lastSun	2:00	0	S
Rule	Marengo	1954	1960	-	Apr	lastSun	2:00	1:00	D
Rule	Marengo	1954	1960	-	Sep	lastSun	2:00	0	S
# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
Zone America/Indiana/Marengo -5:45:23 -	LMT	1883 Nov 18 12:14:37
			-6:00	US	C%sT	1951
			-6:00	Marengo	C%sT	1961 Apr 30 2:00
			-5:00	-	EST	1969
			-5:00	US	E%sT	1974 Jan  6 2:00
			-6:00	1:00	CDT	1974 Oct 27 2:00
			-5:00	US	E%sT	1976
			-5:00	-	EST	2006
			-5:00	US	E%sT
#
# Daviess, Dubois, Knox, and Martin Counties, Indiana,
# switched from eastern to central time in April 2006, then switched back
# in November 2007.
# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
Rule Vincennes	1946	only	-	Apr	lastSun	2:00	1:00	D
Rule Vincennes	1946	only	-	Sep	lastSun	2:00	0	S
Rule Vincennes	1953	1954	-	Apr	lastSun	2:00	1:00	D
Rule Vincennes	1953	1959	-	Sep	lastSun	2:00	0	S
Rule Vincennes	1955	only	-	May	 1	0:00	1:00	D
Rule Vincennes	1956	1963	-	Apr	lastSun	2:00	1:00	D
Rule Vincennes	1960	only	-	Oct	lastSun	2:00	0	S
Rule Vincennes	1961	only	-	Sep	lastSun	2:00	0	S
Rule Vincennes	1962	1963	-	Oct	lastSun	2:00	0	S
# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
Zone America/Indiana/Vincennes -5:50:07 - LMT	1883 Nov 18 12:09:53
			-6:00	US	C%sT	1946
			-6:00 Vincennes	C%sT	1964 Apr 26 2:00
			-5:00	-	EST	1969
			-5:00	US	E%sT	1971
			-5:00	-	EST	2006 Apr  2 2:00
			-6:00	US	C%sT	2007 Nov  4 2:00
			-5:00	US	E%sT
#
# Perry County, Indiana, switched from eastern to central time in April 2006.
# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
Rule Perry	1946	only	-	Apr	lastSun	2:00	1:00	D
Rule Perry	1946	only	-	Sep	lastSun	2:00	0	S
Rule Perry	1953	1954	-	Apr	lastSun	2:00	1:00	D
Rule Perry	1953	1959	-	Sep	lastSun	2:00	0	S
Rule Perry	1955	only	-	May	 1	0:00	1:00	D
Rule Perry	1956	1963	-	Apr	lastSun	2:00	1:00	D
Rule Perry	1960	only	-	Oct	lastSun	2:00	0	S
Rule Perry	1961	only	-	Sep	lastSun	2:00	0	S
Rule Perry	1962	1963	-	Oct	lastSun	2:00	0	S
# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
Zone America/Indiana/Tell_City -5:47:03 - LMT	1883 Nov 18 12:12:57
			-6:00	US	C%sT	1946
			-6:00 Perry	C%sT	1964 Apr 26 2:00
			-5:00	-	EST	1969
			-5:00	US	E%sT	1971
			-5:00	-	EST	2006 Apr  2 2:00
			-6:00	US	C%sT
#
# Pike County, Indiana moved from central to eastern time in 1977,
# then switched back in 2006, then switched back again in 2007.
# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
Rule	Pike	1955	only	-	May	 1	0:00	1:00	D
Rule	Pike	1955	1960	-	Sep	lastSun	2:00	0	S
Rule	Pike	1956	1964	-	Apr	lastSun	2:00	1:00	D
Rule	Pike	1961	1964	-	Oct	lastSun	2:00	0	S
# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
Zone America/Indiana/Petersburg -5:49:07 - LMT	1883 Nov 18 12:10:53
			-6:00	US	C%sT	1955
			-6:00	Pike	C%sT	1965 Apr 25 2:00
			-5:00	-	EST	1966 Oct 30 2:00
			-6:00	US	C%sT	1977 Oct 30 2:00
			-5:00	-	EST	2006 Apr  2 2:00
			-6:00	US	C%sT	2007 Nov  4 2:00
			-5:00	US	E%sT
#
# Starke County, Indiana moved from central to eastern time in 1991,
# then switched back in 2006.
# From Arthur David Olson (1991-10-28):
# An article on page A3 of the Sunday, 1991-10-27 Washington Post
# notes that Starke County switched from Central time to Eastern time as of
# 1991-10-27.
# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
Rule	Starke	1947	1961	-	Apr	lastSun	2:00	1:00	D
Rule	Starke	1947	1954	-	Sep	lastSun	2:00	0	S
Rule	Starke	1955	1956	-	Oct	lastSun	2:00	0	S
Rule	Starke	1957	1958	-	Sep	lastSun	2:00	0	S
Rule	Starke	1959	1961	-	Oct	lastSun	2:00	0	S
# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
Zone America/Indiana/Knox -5:46:30 -	LMT	1883 Nov 18 12:13:30
			-6:00	US	C%sT	1947
			-6:00	Starke	C%sT	1962 Apr 29 2:00
			-5:00	-	EST	1963 Oct 27 2:00
			-6:00	US	C%sT	1991 Oct 27 2:00
			-5:00	-	EST	2006 Apr  2 2:00
			-6:00	US	C%sT
#
# Pulaski County, Indiana, switched from eastern to central time in
# April 2006 and then switched back in March 2007.
# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
Rule	Pulaski	1946	1960	-	Apr	lastSun	2:00	1:00	D
Rule	Pulaski	1946	1954	-	Sep	lastSun	2:00	0	S
Rule	Pulaski	1955	1956	-	Oct	lastSun	2:00	0	S
Rule	Pulaski	1957	1960	-	Sep	lastSun	2:00	0	S
# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
Zone America/Indiana/Winamac -5:46:25 - LMT	1883 Nov 18 12:13:35
			-6:00	US	C%sT	1946
			-6:00	Pulaski	C%sT	1961 Apr 30 2:00
			-5:00	-	EST	1969
			-5:00	US	E%sT	1971
			-5:00	-	EST	2006 Apr  2 2:00
			-6:00	US	C%sT	2007 Mar 11 2:00
			-5:00	US	E%sT
#
# Switzerland County, Indiana, did not observe DST from 1973 through 2005.
# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
Zone America/Indiana/Vevay -5:40:16 -	LMT	1883 Nov 18 12:19:44
			-6:00	US	C%sT	1954 Apr 25 2:00
			-5:00	-	EST	1969
			-5:00	US	E%sT	1973
			-5:00	-	EST	2006
			-5:00	US	E%sT