| 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 |
| 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 |
| 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 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 |
| 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 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 |
| 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 |
| 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 |
| 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 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 |
| 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 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 |
| 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 |
| 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 |
| 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 |
| Link America/Denver America/Shiprock |
| Zone America/Boise -7:44:49 - LMT 1883 Nov 18 12:15:11 |
| -8:00 US P%sT 1923 May 13 2:00 |
| -7:00 US M%sT 1974 |
| -7:00 - MST 1974 Feb 3 2:00 |
| -7:00 US M%sT |
| 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 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 |
| 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 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 |
| 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 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 |
| 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 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 |
| 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 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 |
| 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 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 |
| 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 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 |
| 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 |
| Rule Louisville 1921 only - May 1 2:00 1:00 D |
| Rule Louisville 1921 only - Sep 1 2:00 0 S |
| Rule Louisville 1941 1961 - Apr lastSun 2:00 1:00 D |
| Rule Louisville 1941 only - Sep lastSun 2:00 0 S |
| Rule Louisville 1946 only - Jun 2 2:00 0 S |
| Rule Louisville 1950 1955 - Sep lastSun 2:00 0 S |
| Rule Louisville 1956 1960 - Oct lastSun 2:00 0 S |
| Zone America/Kentucky/Louisville -5:43:02 - LMT 1883 Nov 18 12:16:58 |
| -6:00 US C%sT 1921 |
| -6:00 Louisville C%sT 1942 |
| -6:00 US C%sT 1946 |
| -6:00 Louisville C%sT 1961 Jul 23 2:00 |
| -5:00 - EST 1968 |
| -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 |
| Zone America/Kentucky/Monticello -5:39:24 - LMT 1883 Nov 18 12:20:36 |
| -6:00 US C%sT 1946 |
| -6:00 - CST 1968 |
| -6:00 US C%sT 2000 Oct 29 2:00 |
| -5:00 US E%sT |
| Rule Detroit 1948 only - Apr lastSun 2:00 1:00 D |
| Rule Detroit 1948 only - Sep lastSun 2:00 0 S |
| Rule Detroit 1967 only - Jun 14 2:00 1:00 D |
| Rule Detroit 1967 only - Oct lastSun 2:00 0 S |
| Zone America/Detroit -5:32:11 - LMT 1905 |
| -6:00 - CST 1915 May 15 2:00 |
| -5:00 - EST 1942 |
| -5:00 US E%sT 1946 |
| -5:00 Detroit E%sT 1973 |
| -5:00 US E%sT 1975 |
| -5:00 - EST 1975 Apr 27 2:00 |
| -5:00 US E%sT |
| Rule Menominee 1946 only - Apr lastSun 2:00 1:00 D |
| Rule Menominee 1946 only - Sep lastSun 2:00 0 S |
| Rule Menominee 1966 only - Apr lastSun 2:00 1:00 D |
| Rule Menominee 1966 only - Oct lastSun 2:00 0 S |
| Zone America/Menominee -5:50:27 - LMT 1885 Sep 18 12:00 |
| -6:00 US C%sT 1946 |
| -6:00 Menominee C%sT 1969 Apr 27 2:00 |
| -5:00 - EST 1973 Apr 29 2:00 |
| -6:00 US C%sT |
| Rule Canada 1918 only - Apr 14 2:00 1:00 D |
| Rule Canada 1918 only - Oct 31 2:00 0 S |
| Rule Canada 1942 only - Feb 9 2:00 1:00 W # War |
| Rule Canada 1945 only - Aug 14 23:00u 1:00 P # Peace |
| Rule Canada 1945 only - Sep 30 2:00 0 S |
| Rule Canada 1974 1986 - Apr lastSun 2:00 1:00 D |
| Rule Canada 1974 2006 - Oct lastSun 2:00 0 S |
| Rule Canada 1987 2006 - Apr Sun>=1 2:00 1:00 D |
| Rule Canada 2007 max - Mar Sun>=8 2:00 1:00 D |
| Rule Canada 2007 max - Nov Sun>=1 2:00 0 S |
| Rule StJohns 1917 only - Apr 8 2:00 1:00 D |
| Rule StJohns 1917 only - Sep 17 2:00 0 S |
| Rule StJohns 1919 only - May 5 23:00 1:00 D |
| Rule StJohns 1919 only - Aug 12 23:00 0 S |
| Rule StJohns 1920 1935 - May Sun>=1 23:00 1:00 D |
| Rule StJohns 1920 1935 - Oct lastSun 23:00 0 S |
| Rule StJohns 1936 1941 - May Mon>=9 0:00 1:00 D |
| Rule StJohns 1936 1941 - Oct Mon>=2 0:00 0 S |
| Rule StJohns 1946 1950 - May Sun>=8 2:00 1:00 D |
| Rule StJohns 1946 1950 - Oct Sun>=2 2:00 0 S |
| Rule StJohns 1951 1986 - Apr lastSun 2:00 1:00 D |
| Rule StJohns 1951 1959 - Sep lastSun 2:00 0 S |
| Rule StJohns 1960 1986 - Oct lastSun 2:00 0 S |
| Rule StJohns 1987 only - Apr Sun>=1 0:01 1:00 D |
| Rule StJohns 1987 2006 - Oct lastSun 0:01 0 S |
| Rule StJohns 1988 only - Apr Sun>=1 0:01 2:00 DD |
| Rule StJohns 1989 2006 - Apr Sun>=1 0:01 1:00 D |
| Rule StJohns 2007 max - Mar Sun>=8 0:01 1:00 D |
| Rule StJohns 2007 max - Nov Sun>=1 0:01 0 S |
| Zone America/St_Johns -3:30:52 - LMT 1884 |
| -3:30:52 StJohns N%sT 1918 |
| -3:30:52 Canada N%sT 1919 |
| -3:30:52 StJohns N%sT 1935 Mar 30 |
| -3:30 StJohns N%sT 1942 May 11 |
| -3:30 Canada N%sT 1946 |
| -3:30 StJohns N%sT |
| Zone America/Goose_Bay -4:01:40 - LMT 1884 # Happy Valley-Goose Bay |
| -3:30:52 - NST 1918 |
| -3:30:52 Canada N%sT 1919 |
| -3:30:52 - NST 1935 Mar 30 |
| -3:30 - NST 1936 |
| -3:30 StJohns N%sT 1942 May 11 |
| -3:30 Canada N%sT 1946 |
| -3:30 StJohns N%sT 1966 Mar 15 2:00 |
| -4:00 StJohns A%sT |
| Rule Halifax 1916 only - Apr 1 0:00 1:00 D |
| Rule Halifax 1916 only - Oct 1 0:00 0 S |
| Rule Halifax 1920 only - May 9 0:00 1:00 D |
| Rule Halifax 1920 only - Aug 29 0:00 0 S |
| Rule Halifax 1921 only - May 6 0:00 1:00 D |
| Rule Halifax 1921 1922 - Sep 5 0:00 0 S |
| Rule Halifax 1922 only - Apr 30 0:00 1:00 D |
| Rule Halifax 1923 1925 - May Sun>=1 0:00 1:00 D |
| Rule Halifax 1923 only - Sep 4 0:00 0 S |
| Rule Halifax 1924 only - Sep 15 0:00 0 S |
| Rule Halifax 1925 only - Sep 28 0:00 0 S |
| Rule Halifax 1926 only - May 16 0:00 1:00 D |
| Rule Halifax 1926 only - Sep 13 0:00 0 S |
| Rule Halifax 1927 only - May 1 0:00 1:00 D |
| Rule Halifax 1927 only - Sep 26 0:00 0 S |
| Rule Halifax 1928 1931 - May Sun>=8 0:00 1:00 D |
| Rule Halifax 1928 only - Sep 9 0:00 0 S |
| Rule Halifax 1929 only - Sep 3 0:00 0 S |
| Rule Halifax 1930 only - Sep 15 0:00 0 S |
| Rule Halifax 1931 1932 - Sep Mon>=24 0:00 0 S |
| Rule Halifax 1932 only - May 1 0:00 1:00 D |
| Rule Halifax 1933 only - Apr 30 0:00 1:00 D |
| Rule Halifax 1933 only - Oct 2 0:00 0 S |
| Rule Halifax 1934 only - May 20 0:00 1:00 D |
| Rule Halifax 1934 only - Sep 16 0:00 0 S |
| Rule Halifax 1935 only - Jun 2 0:00 1:00 D |
| Rule Halifax 1935 only - Sep 30 0:00 0 S |
| Rule Halifax 1936 only - Jun 1 0:00 1:00 D |
| Rule Halifax 1936 only - Sep 14 0:00 0 S |
| Rule Halifax 1937 1938 - May Sun>=1 0:00 1:00 D |
| Rule Halifax 1937 1941 - Sep Mon>=24 0:00 0 S |
| Rule Halifax 1939 only - May 28 0:00 1:00 D |
| Rule Halifax 1940 1941 - May Sun>=1 0:00 1:00 D |
| Rule Halifax 1946 1949 - Apr lastSun 2:00 1:00 D |
| Rule Halifax 1946 1949 - Sep lastSun 2:00 0 S |
| Rule Halifax 1951 1954 - Apr lastSun 2:00 1:00 D |
| Rule Halifax 1951 1954 - Sep lastSun 2:00 0 S |
| Rule Halifax 1956 1959 - Apr lastSun 2:00 1:00 D |
| Rule Halifax 1956 1959 - Sep lastSun 2:00 0 S |
| Rule Halifax 1962 1973 - Apr lastSun 2:00 1:00 D |
| Rule Halifax 1962 1973 - Oct lastSun 2:00 0 S |
| Zone America/Halifax -4:14:24 - LMT 1902 Jun 15 |
| -4:00 Halifax A%sT 1918 |
| -4:00 Canada A%sT 1919 |
| -4:00 Halifax A%sT 1942 Feb 9 2:00s |
| -4:00 Canada A%sT 1946 |
| -4:00 Halifax A%sT 1974 |
| -4:00 Canada A%sT |
| Zone America/Glace_Bay -3:59:48 - LMT 1902 Jun 15 |
| -4:00 Canada A%sT 1953 |
| -4:00 Halifax A%sT 1954 |
| -4:00 - AST 1972 |
| -4:00 Halifax A%sT 1974 |
| -4:00 Canada A%sT |
| Rule Moncton 1933 1935 - Jun Sun>=8 1:00 1:00 D |
| Rule Moncton 1933 1935 - Sep Sun>=8 1:00 0 S |
| Rule Moncton 1936 1938 - Jun Sun>=1 1:00 1:00 D |
| Rule Moncton 1936 1938 - Sep Sun>=1 1:00 0 S |
| Rule Moncton 1939 only - May 27 1:00 1:00 D |
| Rule Moncton 1939 1941 - Sep Sat>=21 1:00 0 S |
| Rule Moncton 1940 only - May 19 1:00 1:00 D |
| Rule Moncton 1941 only - May 4 1:00 1:00 D |
| Rule Moncton 1946 1972 - Apr lastSun 2:00 1:00 D |
| Rule Moncton 1946 1956 - Sep lastSun 2:00 0 S |
| Rule Moncton 1957 1972 - Oct lastSun 2:00 0 S |
| Rule Moncton 1993 2006 - Apr Sun>=1 0:01 1:00 D |
| Rule Moncton 1993 2006 - Oct lastSun 0:01 0 S |
| Zone America/Moncton -4:19:08 - LMT 1883 Dec 9 |
| -5:00 - EST 1902 Jun 15 |
| -4:00 Canada A%sT 1933 |
| -4:00 Moncton A%sT 1942 |
| -4:00 Canada A%sT 1946 |
| -4:00 Moncton A%sT 1973 |
| -4:00 Canada A%sT 1993 |
| -4:00 Moncton A%sT 2007 |
| -4:00 Canada A%sT |
| Rule Mont 1917 only - Mar 25 2:00 1:00 D |
| Rule Mont 1917 only - Apr 24 0:00 0 S |
| Rule Mont 1919 only - Mar 31 2:30 1:00 D |
| Rule Mont 1919 only - Oct 25 2:30 0 S |
| Rule Mont 1920 only - May 2 2:30 1:00 D |
| Rule Mont 1920 1922 - Oct Sun>=1 2:30 0 S |
| Rule Mont 1921 only - May 1 2:00 1:00 D |
| Rule Mont 1922 only - Apr 30 2:00 1:00 D |
| Rule Mont 1924 only - May 17 2:00 1:00 D |
| Rule Mont 1924 1926 - Sep lastSun 2:30 0 S |
| Rule Mont 1925 1926 - May Sun>=1 2:00 1:00 D |
| Rule Mont 1927 only - May 1 0:00 1:00 D |
| Rule Mont 1927 1932 - Sep lastSun 0:00 0 S |
| Rule Mont 1928 1931 - Apr lastSun 0:00 1:00 D |
| Rule Mont 1932 only - May 1 0:00 1:00 D |
| Rule Mont 1933 1940 - Apr lastSun 0:00 1:00 D |
| Rule Mont 1933 only - Oct 1 0:00 0 S |
| Rule Mont 1934 1939 - Sep lastSun 0:00 0 S |
| Rule Mont 1946 1973 - Apr lastSun 2:00 1:00 D |
| Rule Mont 1945 1948 - Sep lastSun 2:00 0 S |
| Rule Mont 1949 1950 - Oct lastSun 2:00 0 S |
| Rule Mont 1951 1956 - Sep lastSun 2:00 0 S |
| Rule Mont 1957 1973 - Oct lastSun 2:00 0 S |
| Zone America/Blanc-Sablon -3:48:28 - LMT 1884 |
| -4:00 Canada A%sT 1970 |
| -4:00 - AST |
| Zone America/Montreal -4:54:16 - LMT 1884 |
| -5:00 Mont E%sT 1918 |
| -5:00 Canada E%sT 1919 |
| -5:00 Mont E%sT 1942 Feb 9 2:00s |
| -5:00 Canada E%sT 1946 |
| -5:00 Mont E%sT 1974 |
| -5:00 Canada E%sT |
| Rule Toronto 1919 only - Mar 30 23:30 1:00 D |
| Rule Toronto 1919 only - Oct 26 0:00 0 S |
| Rule Toronto 1920 only - May 2 2:00 1:00 D |
| Rule Toronto 1920 only - Sep 26 0:00 0 S |
| Rule Toronto 1921 only - May 15 2:00 1:00 D |
| Rule Toronto 1921 only - Sep 15 2:00 0 S |
| Rule Toronto 1922 1923 - May Sun>=8 2:00 1:00 D |
| Rule Toronto 1922 1926 - Sep Sun>=15 2:00 0 S |
| Rule Toronto 1924 1927 - May Sun>=1 2:00 1:00 D |
| Rule Toronto 1927 1932 - Sep lastSun 2:00 0 S |
| Rule Toronto 1928 1931 - Apr lastSun 2:00 1:00 D |
| Rule Toronto 1932 only - May 1 2:00 1:00 D |
| Rule Toronto 1933 1940 - Apr lastSun 2:00 1:00 D |
| Rule Toronto 1933 only - Oct 1 2:00 0 S |
| Rule Toronto 1934 1939 - Sep lastSun 2:00 0 S |
| Rule Toronto 1945 1946 - Sep lastSun 2:00 0 S |
| Rule Toronto 1946 only - Apr lastSun 2:00 1:00 D |
| Rule Toronto 1947 1949 - Apr lastSun 0:00 1:00 D |
| Rule Toronto 1947 1948 - Sep lastSun 0:00 0 S |
| Rule Toronto 1949 only - Nov lastSun 0:00 0 S |
| Rule Toronto 1950 1973 - Apr lastSun 2:00 1:00 D |
| Rule Toronto 1950 only - Nov lastSun 2:00 0 S |
| Rule Toronto 1951 1956 - Sep lastSun 2:00 0 S |
| Rule Toronto 1957 1973 - Oct lastSun 2:00 0 S |
| Zone America/Toronto -5:17:32 - LMT 1895 |
| -5:00 Canada E%sT 1919 |
| -5:00 Toronto E%sT 1942 Feb 9 2:00s |
| -5:00 Canada E%sT 1946 |
| -5:00 Toronto E%sT 1974 |
| -5:00 Canada E%sT |
| Zone America/Thunder_Bay -5:57:00 - LMT 1895 |
| -6:00 - CST 1910 |
| -5:00 - EST 1942 |
| -5:00 Canada E%sT 1970 |
| -5:00 Mont E%sT 1973 |
| -5:00 - EST 1974 |
| -5:00 Canada E%sT |
| Zone America/Nipigon -5:53:04 - LMT 1895 |
| -5:00 Canada E%sT 1940 Sep 29 |
| -5:00 1:00 EDT 1942 Feb 9 2:00s |
| -5:00 Canada E%sT |
| Zone America/Rainy_River -6:18:16 - LMT 1895 |
| -6:00 Canada C%sT 1940 Sep 29 |
| -6:00 1:00 CDT 1942 Feb 9 2:00s |
| -6:00 Canada C%sT |
| Zone America/Atikokan -6:06:28 - LMT 1895 |
| -6:00 Canada C%sT 1940 Sep 29 |
| -6:00 1:00 CDT 1942 Feb 9 2:00s |
| -6:00 Canada C%sT 1945 Sep 30 2:00 |
| -5:00 - EST |
| Rule Winn 1916 only - Apr 23 0:00 1:00 D |
| Rule Winn 1916 only - Sep 17 0:00 0 S |
| Rule Winn 1918 only - Apr 14 2:00 1:00 D |
| Rule Winn 1918 only - Oct 31 2:00 0 S |
| Rule Winn 1937 only - May 16 2:00 1:00 D |
| Rule Winn 1937 only - Sep 26 2:00 0 S |
| Rule Winn 1942 only - Feb 9 2:00 1:00 W # War |
| Rule Winn 1945 only - Aug 14 23:00u 1:00 P # Peace |
| Rule Winn 1945 only - Sep lastSun 2:00 0 S |
| Rule Winn 1946 only - May 12 2:00 1:00 D |
| Rule Winn 1946 only - Oct 13 2:00 0 S |
| Rule Winn 1947 1949 - Apr lastSun 2:00 1:00 D |
| Rule Winn 1947 1949 - Sep lastSun 2:00 0 S |
| Rule Winn 1950 only - May 1 2:00 1:00 D |
| Rule Winn 1950 only - Sep 30 2:00 0 S |
| Rule Winn 1951 1960 - Apr lastSun 2:00 1:00 D |
| Rule Winn 1951 1958 - Sep lastSun 2:00 0 S |
| Rule Winn 1959 only - Oct lastSun 2:00 0 S |
| Rule Winn 1960 only - Sep lastSun 2:00 0 S |
| Rule Winn 1963 only - Apr lastSun 2:00 1:00 D |
| Rule Winn 1963 only - Sep 22 2:00 0 S |
| Rule Winn 1966 1986 - Apr lastSun 2:00s 1:00 D |
| Rule Winn 1966 2005 - Oct lastSun 2:00s 0 S |
| Rule Winn 1987 2005 - Apr Sun>=1 2:00s 1:00 D |
| Zone America/Winnipeg -6:28:36 - LMT 1887 Jul 16 |
| -6:00 Winn C%sT 2006 |
| -6:00 Canada C%sT |
| Rule Regina 1918 only - Apr 14 2:00 1:00 D |
| Rule Regina 1918 only - Oct 31 2:00 0 S |
| Rule Regina 1930 1934 - May Sun>=1 0:00 1:00 D |
| Rule Regina 1930 1934 - Oct Sun>=1 0:00 0 S |
| Rule Regina 1937 1941 - Apr Sun>=8 0:00 1:00 D |
| Rule Regina 1937 only - Oct Sun>=8 0:00 0 S |
| Rule Regina 1938 only - Oct Sun>=1 0:00 0 S |
| Rule Regina 1939 1941 - Oct Sun>=8 0:00 0 S |
| Rule Regina 1942 only - Feb 9 2:00 1:00 W # War |
| Rule Regina 1945 only - Aug 14 23:00u 1:00 P # Peace |
| Rule Regina 1945 only - Sep lastSun 2:00 0 S |
| Rule Regina 1946 only - Apr Sun>=8 2:00 1:00 D |
| Rule Regina 1946 only - Oct Sun>=8 2:00 0 S |
| Rule Regina 1947 1957 - Apr lastSun 2:00 1:00 D |
| Rule Regina 1947 1957 - Sep lastSun 2:00 0 S |
| Rule Regina 1959 only - Apr lastSun 2:00 1:00 D |
| Rule Regina 1959 only - Oct lastSun 2:00 0 S |
| Rule Swift 1957 only - Apr lastSun 2:00 1:00 D |
| Rule Swift 1957 only - Oct lastSun 2:00 0 S |
| Rule Swift 1959 1961 - Apr lastSun 2:00 1:00 D |
| Rule Swift 1959 only - Oct lastSun 2:00 0 S |
| Rule Swift 1960 1961 - Sep lastSun 2:00 0 S |
| Zone America/Regina -6:58:36 - LMT 1905 Sep |
| -7:00 Regina M%sT 1960 Apr lastSun 2:00 |
| -6:00 - CST |
| Zone America/Swift_Current -7:11:20 - LMT 1905 Sep |
| -7:00 Canada M%sT 1946 Apr lastSun 2:00 |
| -7:00 Regina M%sT 1950 |
| -7:00 Swift M%sT 1972 Apr lastSun 2:00 |
| -6:00 - CST |
| Rule Edm 1918 1919 - Apr Sun>=8 2:00 1:00 D |
| Rule Edm 1918 only - Oct 31 2:00 0 S |
| Rule Edm 1919 only - May 27 2:00 0 S |
| Rule Edm 1920 1923 - Apr lastSun 2:00 1:00 D |
| Rule Edm 1920 only - Oct lastSun 2:00 0 S |
| Rule Edm 1921 1923 - Sep lastSun 2:00 0 S |
| Rule Edm 1942 only - Feb 9 2:00 1:00 W # War |
| Rule Edm 1945 only - Aug 14 23:00u 1:00 P # Peace |
| Rule Edm 1945 only - Sep lastSun 2:00 0 S |
| Rule Edm 1947 only - Apr lastSun 2:00 1:00 D |
| Rule Edm 1947 only - Sep lastSun 2:00 0 S |
| Rule Edm 1967 only - Apr lastSun 2:00 1:00 D |
| Rule Edm 1967 only - Oct lastSun 2:00 0 S |
| Rule Edm 1969 only - Apr lastSun 2:00 1:00 D |
| Rule Edm 1969 only - Oct lastSun 2:00 0 S |
| Rule Edm 1972 1986 - Apr lastSun 2:00 1:00 D |
| Rule Edm 1972 2006 - Oct lastSun 2:00 0 S |
| Zone America/Edmonton -7:33:52 - LMT 1906 Sep |
| -7:00 Edm M%sT 1987 |
| -7:00 Canada M%sT |
| Rule Vanc 1918 only - Apr 14 2:00 1:00 D |
| Rule Vanc 1918 only - Oct 31 2:00 0 S |
| Rule Vanc 1942 only - Feb 9 2:00 1:00 W # War |
| Rule Vanc 1945 only - Aug 14 23:00u 1:00 P # Peace |
| Rule Vanc 1945 only - Sep 30 2:00 0 S |
| Rule Vanc 1946 1986 - Apr lastSun 2:00 1:00 D |
| Rule Vanc 1946 only - Oct 13 2:00 0 S |
| Rule Vanc 1947 1961 - Sep lastSun 2:00 0 S |
| Rule Vanc 1962 2006 - Oct lastSun 2:00 0 S |
| Zone America/Vancouver -8:12:28 - LMT 1884 |
| -8:00 Vanc P%sT 1987 |
| -8:00 Canada P%sT |
| Zone America/Dawson_Creek -8:00:56 - LMT 1884 |
| -8:00 Canada P%sT 1947 |
| -8:00 Vanc P%sT 1972 Aug 30 2:00 |
| -7:00 - MST |
| Rule NT_YK 1918 only - Apr 14 2:00 1:00 D |
| Rule NT_YK 1918 only - Oct 27 2:00 0 S |
| Rule NT_YK 1919 only - May 25 2:00 1:00 D |
| Rule NT_YK 1919 only - Nov 1 0:00 0 S |
| Rule NT_YK 1942 only - Feb 9 2:00 1:00 W # War |
| Rule NT_YK 1945 only - Aug 14 23:00u 1:00 P # Peace |
| Rule NT_YK 1945 only - Sep 30 2:00 0 S |
| Rule NT_YK 1965 only - Apr lastSun 0:00 2:00 DD |
| Rule NT_YK 1965 only - Oct lastSun 2:00 0 S |
| Rule NT_YK 1980 1986 - Apr lastSun 2:00 1:00 D |
| Rule NT_YK 1980 2006 - Oct lastSun 2:00 0 S |
| Rule NT_YK 1987 2006 - Apr Sun>=1 2:00 1:00 D |
| Zone America/Pangnirtung 0 - zzz 1921 # trading post est. |
| -4:00 NT_YK A%sT 1995 Apr Sun>=1 2:00 |
| -5:00 Canada E%sT 1999 Oct 31 2:00 |
| -6:00 Canada C%sT 2000 Oct 29 2:00 |
| -5:00 Canada E%sT |
| Zone America/Iqaluit 0 - zzz 1942 Aug # Frobisher Bay est. |
| -5:00 NT_YK E%sT 1999 Oct 31 2:00 |
| -6:00 Canada C%sT 2000 Oct 29 2:00 |
| -5:00 Canada E%sT |
| Rule Resolute 2006 max - Nov Sun>=1 2:00 0 ES |
| Rule Resolute 2007 max - Mar Sun>=8 2:00 0 CD |
| Zone America/Resolute 0 - zzz 1947 Aug 31 # Resolute founded |
| -6:00 NT_YK C%sT 2000 Oct 29 2:00 |
| -5:00 - EST 2001 Apr 1 3:00 |
| -6:00 Canada C%sT 2006 Oct 29 2:00 |
| -5:00 Resolute %sT |
| Zone America/Rankin_Inlet 0 - zzz 1957 # Rankin Inlet founded |
| -6:00 NT_YK C%sT 2000 Oct 29 2:00 |
| -5:00 - EST 2001 Apr 1 3:00 |
| -6:00 Canada C%sT |
| Zone America/Cambridge_Bay 0 - zzz 1920 # trading post est.? |
| -7:00 NT_YK M%sT 1999 Oct 31 2:00 |
| -6:00 Canada C%sT 2000 Oct 29 2:00 |
| -5:00 - EST 2000 Nov 5 0:00 |
| -6:00 - CST 2001 Apr 1 3:00 |
| -7:00 Canada M%sT |
| Zone America/Yellowknife 0 - zzz 1935 # Yellowknife founded? |
| -7:00 NT_YK M%sT 1980 |
| -7:00 Canada M%sT |
| Zone America/Inuvik 0 - zzz 1953 # Inuvik founded |
| -8:00 NT_YK P%sT 1979 Apr lastSun 2:00 |
| -7:00 NT_YK M%sT 1980 |
| -7:00 Canada M%sT |
| Zone America/Whitehorse -9:00:12 - LMT 1900 Aug 20 |
| -9:00 NT_YK Y%sT 1966 Jul 1 2:00 |
| -8:00 NT_YK P%sT 1980 |
| -8:00 Canada P%sT |
| Zone America/Dawson -9:17:40 - LMT 1900 Aug 20 |
| -9:00 NT_YK Y%sT 1973 Oct 28 0:00 |
| -8:00 NT_YK P%sT 1980 |
| -8:00 Canada P%sT |
| Rule Mexico 1939 only - Feb 5 0:00 1:00 D |
| Rule Mexico 1939 only - Jun 25 0:00 0 S |
| Rule Mexico 1940 only - Dec 9 0:00 1:00 D |
| Rule Mexico 1941 only - Apr 1 0:00 0 S |
| Rule Mexico 1943 only - Dec 16 0:00 1:00 W # War |
| Rule Mexico 1944 only - May 1 0:00 0 S |
| Rule Mexico 1950 only - Feb 12 0:00 1:00 D |
| Rule Mexico 1950 only - Jul 30 0:00 0 S |
| Rule Mexico 1996 2000 - Apr Sun>=1 2:00 1:00 D |
| Rule Mexico 1996 2000 - Oct lastSun 2:00 0 S |
| Rule Mexico 2001 only - May Sun>=1 2:00 1:00 D |
| Rule Mexico 2001 only - Sep lastSun 2:00 0 S |
| Rule Mexico 2002 max - Apr Sun>=1 2:00 1:00 D |
| Rule Mexico 2002 max - Oct lastSun 2:00 0 S |
| Zone America/Cancun -5:47:04 - LMT 1922 Jan 1 0:12:56 |
| -6:00 - CST 1981 Dec 23 |
| -5:00 Mexico E%sT 1998 Aug 2 2:00 |
| -6:00 Mexico C%sT |
| Zone America/Merida -5:58:28 - LMT 1922 Jan 1 0:01:32 |
| -6:00 - CST 1981 Dec 23 |
| -5:00 - EST 1982 Dec 2 |
| -6:00 Mexico C%sT |
| Zone America/Monterrey -6:41:16 - LMT 1921 Dec 31 23:18:44 |
| -6:00 - CST 1988 |
| -6:00 US C%sT 1989 |
| -6:00 Mexico C%sT |
| Zone America/Mexico_City -6:36:36 - LMT 1922 Jan 1 0:23:24 |
| -7:00 - MST 1927 Jun 10 23:00 |
| -6:00 - CST 1930 Nov 15 |
| -7:00 - MST 1931 May 1 23:00 |
| -6:00 - CST 1931 Oct |
| -7:00 - MST 1932 Apr 1 |
| -6:00 Mexico C%sT 2001 Sep 30 02:00 |
| -6:00 - CST 2002 Feb 20 |
| -6:00 Mexico C%sT |
| Zone America/Chihuahua -7:04:20 - LMT 1921 Dec 31 23:55:40 |
| -7:00 - MST 1927 Jun 10 23:00 |
| -6:00 - CST 1930 Nov 15 |
| -7:00 - MST 1931 May 1 23:00 |
| -6:00 - CST 1931 Oct |
| -7:00 - MST 1932 Apr 1 |
| -6:00 - CST 1996 |
| -6:00 Mexico C%sT 1998 |
| -6:00 - CST 1998 Apr Sun>=1 3:00 |
| -7:00 Mexico M%sT |
| Zone America/Hermosillo -7:23:52 - LMT 1921 Dec 31 23:36:08 |
| -7:00 - MST 1927 Jun 10 23:00 |
| -6:00 - CST 1930 Nov 15 |
| -7:00 - MST 1931 May 1 23:00 |
| -6:00 - CST 1931 Oct |
| -7:00 - MST 1932 Apr 1 |
| -6:00 - CST 1942 Apr 24 |
| -7:00 - MST 1949 Jan 14 |
| -8:00 - PST 1970 |
| -7:00 Mexico M%sT 1999 |
| -7:00 - MST |
| Zone America/Mazatlan -7:05:40 - LMT 1921 Dec 31 23:54:20 |
| -7:00 - MST 1927 Jun 10 23:00 |
| -6:00 - CST 1930 Nov 15 |
| -7:00 - MST 1931 May 1 23:00 |
| -6:00 - CST 1931 Oct |
| -7:00 - MST 1932 Apr 1 |
| -6:00 - CST 1942 Apr 24 |
| -7:00 - MST 1949 Jan 14 |
| -8:00 - PST 1970 |
| -7:00 Mexico M%sT |
| Zone America/Tijuana -7:48:04 - LMT 1922 Jan 1 0:11:56 |
| -7:00 - MST 1924 |
| -8:00 - PST 1927 Jun 10 23:00 |
| -7:00 - MST 1930 Nov 15 |
| -8:00 - PST 1931 Apr 1 |
| -8:00 1:00 PDT 1931 Sep 30 |
| -8:00 - PST 1942 Apr 24 |
| -8:00 1:00 PWT 1945 Aug 14 23:00u |
| -8:00 1:00 PPT 1945 Nov 12 # Peace |
| -8:00 - PST 1948 Apr 5 |
| -8:00 1:00 PDT 1949 Jan 14 |
| -8:00 - PST 1954 |
| -8:00 CA P%sT 1961 |
| -8:00 - PST 1976 |
| -8:00 US P%sT 1996 |
| -8:00 Mexico P%sT 2001 |
| -8:00 US P%sT 2002 Feb 20 |
| -8:00 Mexico P%sT |
| Zone America/Anguilla -4:12:16 - LMT 1912 Mar 2 |
| -4:00 - AST |
| Zone America/Antigua -4:07:12 - LMT 1912 Mar 2 |
| -5:00 - EST 1951 |
| -4:00 - AST |
| Rule Bahamas 1964 1975 - Oct lastSun 2:00 0 S |
| Rule Bahamas 1964 1975 - Apr lastSun 2:00 1:00 D |
| Zone America/Nassau -5:09:24 - LMT 1912 Mar 2 |
| -5:00 Bahamas E%sT 1976 |
| -5:00 US E%sT |
| Rule Barb 1977 only - Jun 12 2:00 1:00 D |
| Rule Barb 1977 1978 - Oct Sun>=1 2:00 0 S |
| Rule Barb 1978 1980 - Apr Sun>=15 2:00 1:00 D |
| Rule Barb 1979 only - Sep 30 2:00 0 S |
| Rule Barb 1980 only - Sep 25 2:00 0 S |
| Zone America/Barbados -3:58:28 - LMT 1924 # Bridgetown |
| -3:58:28 - BMT 1932 # Bridgetown Mean Time |
| -4:00 Barb A%sT |
| Rule Belize 1918 1942 - Oct Sun>=2 0:00 0:30 HD |
| Rule Belize 1919 1943 - Feb Sun>=9 0:00 0 S |
| Rule Belize 1973 only - Dec 5 0:00 1:00 D |
| Rule Belize 1974 only - Feb 9 0:00 0 S |
| Rule Belize 1982 only - Dec 18 0:00 1:00 D |
| Rule Belize 1983 only - Feb 12 0:00 0 S |
| Zone America/Belize -5:52:48 - LMT 1912 Apr |
| -6:00 Belize C%sT |
| Zone Atlantic/Bermuda -4:19:04 - LMT 1930 Jan 1 2:00 # Hamilton |
| -4:00 - AST 1974 Apr 28 2:00 |
| -4:00 Bahamas A%sT 1976 |
| -4:00 US A%sT |
| Zone America/Cayman -5:25:32 - LMT 1890 # Georgetown |
| -5:07:12 - KMT 1912 Feb # Kingston Mean Time |
| -5:00 - EST |
| Rule CR 1979 1980 - Feb lastSun 0:00 1:00 D |
| Rule CR 1979 1980 - Jun Sun>=1 0:00 0 S |
| Rule CR 1991 1992 - Jan Sat>=15 0:00 1:00 D |
| Rule CR 1991 only - Jul 1 0:00 0 S |
| Rule CR 1992 only - Mar 15 0:00 0 S |
| Zone America/Costa_Rica -5:36:20 - LMT 1890 # San Jose |
| -5:36:20 - SJMT 1921 Jan 15 # San Jose Mean Time |
| -6:00 CR C%sT |
| Rule Cuba 1928 only - Jun 10 0:00 1:00 D |
| Rule Cuba 1928 only - Oct 10 0:00 0 S |
| Rule Cuba 1940 1942 - Jun Sun>=1 0:00 1:00 D |
| Rule Cuba 1940 1942 - Sep Sun>=1 0:00 0 S |
| Rule Cuba 1945 1946 - Jun Sun>=1 0:00 1:00 D |
| Rule Cuba 1945 1946 - Sep Sun>=1 0:00 0 S |
| Rule Cuba 1965 only - Jun 1 0:00 1:00 D |
| Rule Cuba 1965 only - Sep 30 0:00 0 S |
| Rule Cuba 1966 only - May 29 0:00 1:00 D |
| Rule Cuba 1966 only - Oct 2 0:00 0 S |
| Rule Cuba 1967 only - Apr 8 0:00 1:00 D |
| Rule Cuba 1967 1968 - Sep Sun>=8 0:00 0 S |
| Rule Cuba 1968 only - Apr 14 0:00 1:00 D |
| Rule Cuba 1969 1977 - Apr lastSun 0:00 1:00 D |
| Rule Cuba 1969 1971 - Oct lastSun 0:00 0 S |
| Rule Cuba 1972 1974 - Oct 8 0:00 0 S |
| Rule Cuba 1975 1977 - Oct lastSun 0:00 0 S |
| Rule Cuba 1978 only - May 7 0:00 1:00 D |
| Rule Cuba 1978 1990 - Oct Sun>=8 0:00 0 S |
| Rule Cuba 1979 1980 - Mar Sun>=15 0:00 1:00 D |
| Rule Cuba 1981 1985 - May Sun>=5 0:00 1:00 D |
| Rule Cuba 1986 1989 - Mar Sun>=14 0:00 1:00 D |
| Rule Cuba 1990 1997 - Apr Sun>=1 0:00 1:00 D |
| Rule Cuba 1991 1995 - Oct Sun>=8 0:00s 0 S |
| Rule Cuba 1996 only - Oct 6 0:00s 0 S |
| Rule Cuba 1997 only - Oct 12 0:00s 0 S |
| Rule Cuba 1998 1999 - Mar lastSun 0:00s 1:00 D |
| Rule Cuba 1998 2003 - Oct lastSun 0:00s 0 S |
| Rule Cuba 2000 2004 - Apr Sun>=1 0:00s 1:00 D |
| Rule Cuba 2006 max - Oct lastSun 0:00s 0 S |
| Rule Cuba 2007 only - Mar Sun>=8 0:00s 1:00 D |
| Rule Cuba 2008 only - Mar Sun>=15 0:00s 1:00 D |
| Rule Cuba 2009 max - Mar Sun>=8 0:00s 1:00 D |
| Zone America/Havana -5:29:28 - LMT 1890 |
| -5:29:36 - HMT 1925 Jul 19 12:00 # Havana MT |
| -5:00 Cuba C%sT |
| Zone America/Dominica -4:05:36 - LMT 1911 Jul 1 0:01 # Roseau |
| -4:00 - AST |
| Rule DR 1966 only - Oct 30 0:00 1:00 D |
| Rule DR 1967 only - Feb 28 0:00 0 S |
| Rule DR 1969 1973 - Oct lastSun 0:00 0:30 HD |
| Rule DR 1970 only - Feb 21 0:00 0 S |
| Rule DR 1971 only - Jan 20 0:00 0 S |
| Rule DR 1972 1974 - Jan 21 0:00 0 S |
| Zone America/Santo_Domingo -4:39:36 - LMT 1890 |
| -4:40 - SDMT 1933 Apr 1 12:00 # S. Dom. MT |
| -5:00 DR E%sT 1974 Oct 27 |
| -4:00 - AST 2000 Oct 29 02:00 |
| -5:00 US E%sT 2000 Dec 3 01:00 |
| -4:00 - AST |
| Rule Salv 1987 1988 - May Sun>=1 0:00 1:00 D |
| Rule Salv 1987 1988 - Sep lastSun 0:00 0 S |
| Zone America/El_Salvador -5:56:48 - LMT 1921 # San Salvador |
| -6:00 Salv C%sT |
| Zone America/Grenada -4:07:00 - LMT 1911 Jul # St George's |
| -4:00 - AST |
| Zone America/Guadeloupe -4:06:08 - LMT 1911 Jun 8 # Pointe a Pitre |
| -4:00 - AST |
| Link America/Guadeloupe America/St_Barthelemy |
| Link America/Guadeloupe America/Marigot |
| Rule Guat 1973 only - Nov 25 0:00 1:00 D |
| Rule Guat 1974 only - Feb 24 0:00 0 S |
| Rule Guat 1983 only - May 21 0:00 1:00 D |
| Rule Guat 1983 only - Sep 22 0:00 0 S |
| Rule Guat 1991 only - Mar 23 0:00 1:00 D |
| Rule Guat 1991 only - Sep 7 0:00 0 S |
| Rule Guat 2006 only - Apr 30 0:00 1:00 D |
| Rule Guat 2006 only - Oct 1 0:00 0 S |
| Zone America/Guatemala -6:02:04 - LMT 1918 Oct 5 |
| -6:00 Guat C%sT |
| Rule Haiti 1983 only - May 8 0:00 1:00 D |
| Rule Haiti 1984 1987 - Apr lastSun 0:00 1:00 D |
| Rule Haiti 1983 1987 - Oct lastSun 0:00 0 S |
| Rule Haiti 1988 1997 - Apr Sun>=1 1:00s 1:00 D |
| Rule Haiti 1988 1997 - Oct lastSun 1:00s 0 S |
| Rule Haiti 2005 2006 - Apr Sun>=1 0:00 1:00 D |
| Rule Haiti 2005 2006 - Oct lastSun 0:00 0 S |
| Zone America/Port-au-Prince -4:49:20 - LMT 1890 |
| -4:49 - PPMT 1917 Jan 24 12:00 # P-a-P MT |
| -5:00 Haiti E%sT |
| Rule Hond 1987 1988 - May Sun>=1 0:00 1:00 D |
| Rule Hond 1987 1988 - Sep lastSun 0:00 0 S |
| Rule Hond 2006 only - May Sun>=1 0:00 1:00 D |
| Rule Hond 2006 only - Aug Mon>=1 0:00 0 S |
| Zone America/Tegucigalpa -5:48:52 - LMT 1921 Apr |
| -6:00 Hond C%sT |
| Zone America/Jamaica -5:07:12 - LMT 1890 # Kingston |
| -5:07:12 - KMT 1912 Feb # Kingston Mean Time |
| -5:00 - EST 1974 Apr 28 2:00 |
| -5:00 US E%sT 1984 |
| -5:00 - EST |
| Zone America/Martinique -4:04:20 - LMT 1890 # Fort-de-France |
| -4:04:20 - FFMT 1911 May # Fort-de-France MT |
| -4:00 - AST 1980 Apr 6 |
| -4:00 1:00 ADT 1980 Sep 28 |
| -4:00 - AST |
| Zone America/Montserrat -4:08:52 - LMT 1911 Jul 1 0:01 # Cork Hill |
| -4:00 - AST |
| Rule Nic 1979 1980 - Mar Sun>=16 0:00 1:00 D |
| Rule Nic 1979 1980 - Jun Mon>=23 0:00 0 S |
| Rule Nic 2005 only - Apr 10 0:00 1:00 D |
| Rule Nic 2005 only - Oct Sun>=1 0:00 0 S |
| Rule Nic 2006 only - Apr 30 2:00 1:00 D |
| Rule Nic 2006 only - Oct Sun>=1 1:00 0 S |
| Zone America/Managua -5:45:08 - LMT 1890 |
| -5:45:12 - MMT 1934 Jun 23 # Managua Mean Time? |
| -6:00 - CST 1973 May |
| -5:00 - EST 1975 Feb 16 |
| -6:00 Nic C%sT 1992 Jan 1 4:00 |
| -5:00 - EST 1992 Sep 24 |
| -6:00 - CST 1993 |
| -5:00 - EST 1997 |
| -6:00 Nic C%sT |
| Zone America/Panama -5:18:08 - LMT 1890 |
| -5:19:36 - CMT 1908 Apr 22 # Colon Mean Time |
| -5:00 - EST |
| Zone America/Puerto_Rico -4:24:25 - LMT 1899 Mar 28 12:00 # San Juan |
| -4:00 - AST 1942 May 3 |
| -4:00 US A%sT 1946 |
| -4:00 - AST |
| Zone America/St_Kitts -4:10:52 - LMT 1912 Mar 2 # Basseterre |
| -4:00 - AST |
| Zone America/St_Lucia -4:04:00 - LMT 1890 # Castries |
| -4:04:00 - CMT 1912 # Castries Mean Time |
| -4:00 - AST |
| Zone America/Miquelon -3:44:40 - LMT 1911 May 15 # St Pierre |
| -4:00 - AST 1980 May |
| -3:00 - PMST 1987 # Pierre & Miquelon Time |
| -3:00 Canada PM%sT |
| Zone America/St_Vincent -4:04:56 - LMT 1890 # Kingstown |
| -4:04:56 - KMT 1912 # Kingstown Mean Time |
| -4:00 - AST |
| Rule TC 1979 1986 - Apr lastSun 2:00 1:00 D |
| Rule TC 1979 2006 - Oct lastSun 2:00 0 S |
| Rule TC 1987 2006 - Apr Sun>=1 2:00 1:00 D |
| Rule TC 2007 max - Mar Sun>=8 2:00 1:00 D |
| Rule TC 2007 max - Nov Sun>=1 2:00 0 S |
| Zone America/Grand_Turk -4:44:32 - LMT 1890 |
| -5:07:12 - KMT 1912 Feb # Kingston Mean Time |
| -5:00 TC E%sT |
| Zone America/Tortola -4:18:28 - LMT 1911 Jul # Road Town |
| -4:00 - AST |
| Zone America/St_Thomas -4:19:44 - LMT 1911 Jul # Charlotte Amalie |
| -4:00 - AST |
