Historically distinct IANA time zone
America/Indiana/Tell_City
- Countries
- United States of America
- GPS reference
- 37.95° N, 86.76° W
- Data source
- IANA northamerica
- Aliases
- None
United States of AmericaCentral - IN (Perry)
Geographic context
Where this clock belongs
The map marks the IANA reference location and associated country, not a time-zone boundary.
GPS reference: 37.95° N, 86.76° W. Associated countries: US.
The Wikipedia link provides additional context; it is not evidence for a historical claim. Transition data comes from the IANA source file.
Notes from the time database
The story behind the clock
These source notes describe a period or rule. They do not, by themselves, establish a causal claim for a particular clock change.
War
Peace
Perry County, Indiana, switched from eastern to central time in April 2006. The Indianapolis News, Friday 27 October 1967 states that Perry County returned to CST. It went again to EST on 27 April 1969, as documented by the Indianapolis star of Saturday 26 April.
Original IANA source file: northamerica.
A shared present
Same clock today, different past
These nearby zones follow the same current annual pattern, yet retain their own historical record.
- America/Indiana/KnoxUnited States of America · 372 km from the reference location · Same annual clock since 1992
- America/ChicagoUnited States of America · 440 km from the reference location · Same annual clock since 2007
- America/MenomineeUnited States of America · 799 km from the reference location · Same annual clock since 2007
Civil-time record
Recorded changes over time
From 1883 to 2027 · 78 recorded transitions
Recurring daylight-saving changes are grouped separately when JavaScript is available.
Notable changes
One-off changes and transitions outside the recurring seasonal rhythm.
- -06:00 · CSTStandard time applies
- -05:00 · CDTDaylight saving time begins
- -06:00 · CSTStandard time applies
- -05:00 · CDTDaylight saving time begins
- -06:00 · CSTStandard time applies
- -05:00 · CWTDaylight saving time begins
Browse every recorded transition
| Local time after transition | Offset after | Abbreviation | Rule |
|---|---|---|---|
| 1883-11-18 12:00 | -06:00 | CST | Standard time |
| 1918-03-31 03:00 | -05:00 | CDT | Daylight saving time |
| 1918-10-27 01:00 | -06:00 | CST | Standard time |
| 1919-03-30 03:00 | -05:00 | CDT | Daylight saving time |
| 1919-10-26 01:00 | -06:00 | CST | Standard time |
| 1942-02-09 03:00 | -05:00 | CWT | Daylight saving time |
| 1945-08-14 18:00 | -05:00 | CPT | Daylight saving time |
| 1945-09-30 01:00 | -06:00 | CST | Standard time |
| 1955-05-01 01:00 | -05:00 | CDT | Daylight saving time |
| 1955-09-25 01:00 | -06:00 | CST | Standard time |
| 1956-04-29 03:00 | -05:00 | CDT | Daylight saving time |
| 1956-09-30 01:00 | -06:00 | CST | Standard time |
| 1957-04-28 03:00 | -05:00 | CDT | Daylight saving time |
| 1957-09-29 01:00 | -06:00 | CST | Standard time |
| 1958-04-27 03:00 | -05:00 | CDT | Daylight saving time |
| 1958-09-28 01:00 | -06:00 | CST | Standard time |
| 1959-04-26 03:00 | -05:00 | CDT | Daylight saving time |
| 1959-09-27 01:00 | -06:00 | CST | Standard time |
| 1960-04-24 03:00 | -05:00 | CDT | Daylight saving time |
| 1960-09-25 01:00 | -06:00 | CST | Standard time |
| 1961-04-30 03:00 | -05:00 | CDT | Daylight saving time |
| 1961-10-29 01:00 | -06:00 | CST | Standard time |
| 1962-04-29 03:00 | -05:00 | CDT | Daylight saving time |
| 1962-10-28 01:00 | -06:00 | CST | Standard time |
| 1963-04-28 03:00 | -05:00 | CDT | Daylight saving time |
| 1963-10-27 01:00 | -06:00 | CST | Standard time |
| 1964-04-26 03:00 | -05:00 | EST | Standard time |
| 1967-10-29 01:00 | -06:00 | CST | Standard time |
| 1968-04-28 03:00 | -05:00 | CDT | Daylight saving time |
| 1968-10-27 01:00 | -06:00 | CST | Standard time |
| 1969-04-27 04:00 | -04:00 | EDT | Daylight saving time |
| 1969-10-26 01:00 | -05:00 | EST | Standard time |
| 1970-04-26 03:00 | -04:00 | EDT | Daylight saving time |
| 1970-10-25 01:00 | -05:00 | EST | Standard time |
| 2006-04-02 02:00 | -05:00 | CDT | Daylight saving time |
| 2006-10-29 01:00 | -06:00 | CST | Standard time |
| 2007-03-11 03:00 | -05:00 | CDT | Daylight saving time |
| 2007-11-04 01:00 | -06:00 | CST | Standard time |
| 2008-03-09 03:00 | -05:00 | CDT | Daylight saving time |
| 2008-11-02 01:00 | -06:00 | CST | Standard time |
| 2009-03-08 03:00 | -05:00 | CDT | Daylight saving time |
| 2009-11-01 01:00 | -06:00 | CST | Standard time |
| 2010-03-14 03:00 | -05:00 | CDT | Daylight saving time |
| 2010-11-07 01:00 | -06:00 | CST | Standard time |
| 2011-03-13 03:00 | -05:00 | CDT | Daylight saving time |
| 2011-11-06 01:00 | -06:00 | CST | Standard time |
| 2012-03-11 03:00 | -05:00 | CDT | Daylight saving time |
| 2012-11-04 01:00 | -06:00 | CST | Standard time |
| 2013-03-10 03:00 | -05:00 | CDT | Daylight saving time |
| 2013-11-03 01:00 | -06:00 | CST | Standard time |
| 2014-03-09 03:00 | -05:00 | CDT | Daylight saving time |
| 2014-11-02 01:00 | -06:00 | CST | Standard time |
| 2015-03-08 03:00 | -05:00 | CDT | Daylight saving time |
| 2015-11-01 01:00 | -06:00 | CST | Standard time |
| 2016-03-13 03:00 | -05:00 | CDT | Daylight saving time |
| 2016-11-06 01:00 | -06:00 | CST | Standard time |
| 2017-03-12 03:00 | -05:00 | CDT | Daylight saving time |
| 2017-11-05 01:00 | -06:00 | CST | Standard time |
| 2018-03-11 03:00 | -05:00 | CDT | Daylight saving time |
| 2018-11-04 01:00 | -06:00 | CST | Standard time |
| 2019-03-10 03:00 | -05:00 | CDT | Daylight saving time |
| 2019-11-03 01:00 | -06:00 | CST | Standard time |
| 2020-03-08 03:00 | -05:00 | CDT | Daylight saving time |
| 2020-11-01 01:00 | -06:00 | CST | Standard time |
| 2021-03-14 03:00 | -05:00 | CDT | Daylight saving time |
| 2021-11-07 01:00 | -06:00 | CST | Standard time |
| 2022-03-13 03:00 | -05:00 | CDT | Daylight saving time |
| 2022-11-06 01:00 | -06:00 | CST | Standard time |
| 2023-03-12 03:00 | -05:00 | CDT | Daylight saving time |
| 2023-11-05 01:00 | -06:00 | CST | Standard time |
| 2024-03-10 03:00 | -05:00 | CDT | Daylight saving time |
| 2024-11-03 01:00 | -06:00 | CST | Standard time |
| 2025-03-09 03:00 | -05:00 | CDT | Daylight saving time |
| 2025-11-02 01:00 | -06:00 | CST | Standard time |
| 2026-03-08 03:00 | -05:00 | CDT | Daylight saving time |
| 2026-11-01 01:00 | -06:00 | CST | Standard time |
| 2027-03-14 03:00 | -05:00 | CDT | Daylight saving time |
| 2027-11-07 01:00 | -06:00 | CST | Standard time |