Time Zone History

Knox, Indiana time zone history

On standard time, clocks in Knox, Indiana run 14 minutes behind local mean solar time. Local mean time, UTC−5:46:30, ended in 1883.

UTC−6

Standard time is UTC−6 (CDT/CST); clocks go forward to UTC−5 on the second Sunday in March and back on the first Sunday in November.

Covers: Starke County, Indiana · tz database name America/Indiana/Knox

Convert a time from Knox, Indiana

Summer time in 43 of 57 years since 1970

UTC−6: today’s standard timeUTC−5:46:30: 14 minutes ahead of today’s standard timeUTC−5: 1 hour ahead of today’s standard timeUTC−6: today’s standard timeUTC−5:46:30: 14 minutes ahead oftoday’s standard timeUTC−5: 1 hour ahead of today’sstandard time

How to read this chart

Before 1970

187018901910193019501970187019101950
JanFebMarAprMayJunJulAugSepOctNovDec1970198019902000201020202028JFMAMJJASOND1970198019902000201020202028

Standard time changes

DateChangeNew standard timeClock label
Before 1970
November 18, 1883Local mean time (UTC−5:46:30) replacedUTC−6CST
April 29, 1962Standard time forward 1 hourUTC−5EST
October 27, 1963Standard time back 1 hourUTC−6CST
Since 1970
October 27, 1991Summer offset kept as standard time; clocks did not moveUTC−5EST
April 2, 2006Summer offset kept as standard time; clocks did not moveUTC−6CST

Daylight saving periods

YearsClocks go forwardClocks go backShift and labels
Before 1970
1918–1919last Sunday in March, 02:00last Sunday in October, 02:001 hour, CST to CDT
1942February 9not that year1 hour, CST to CWT
1945not that yearSeptember 301 hour
1947–1954last Sunday in April, 02:00last Sunday in September, 02:001 hour, CST to CDT
1955–1956last Sunday in April, 02:00last Sunday in October, 02:001 hour, CST to CDT
1957–1958last Sunday in April, 02:00last Sunday in September, 02:001 hour, CST to CDT
1959–1961last Sunday in April, 02:00last Sunday in October, 02:001 hour, CST to CDT
1967–1973last Sunday in April, 02:00last Sunday in October, 02:001 hour, CST to CDT
Since 1970
1974January 6October 271 hour, CST to CDT
1975February 23October 261 hour, CST to CDT
1976–1986last Sunday in April, 02:00last Sunday in October, 02:001 hour, CST to CDT
1987–1990first Sunday in April, 02:00last Sunday in October, 02:001 hour, CST to CDT
1991April 7not that year1 hour, CST to CDT
2006not that yearOctober 291 hour
2007–2037second Sunday in March, 02:00first Sunday in November, 02:001 hour, CST to CDT

Clock changes in 2026, 2027 and 2028

The clocks go forward 1 hour (CST to CDT) on March 8, 2026, March 14, 2027 and March 12, 2028 at 02:00 and back 1 hour (CDT to CST) on November 1, 2026, November 7, 2027 and November 5, 2028 at 02:00, local time.

Also on UTC−6

Chicago (United States), Tell City, Indiana (United States), Menominee (United States), New Salem, North Dakota (United States), Center, North Dakota (United States), Beulah, North Dakota (United States), Regina (Canada), Swift Current (Canada), Matamoros (Mexico) and Ojinaga (Mexico) (nearest first; 17 more on the list of offsets).

Clocks next door since 1970

  • Winamac, Indiana (27 km): usually 1 hour ahead; different on 9,773 days in 1970–2026.
  • Chicago (105 km): same time except 2,374 days in 1991–2006.
  • Indianapolis, Indiana (174 km): usually 1 hour ahead; different on 9,430 days in 1970–2026.
  • Vincennes, Indiana (301 km): usually 1 hour ahead; different on 10,011 days in 1970–2026.
  • Vevay, Indiana (313 km): usually 1 hour ahead; different on 9,059 days in 1970–2026.