About 60% of Kentucky lies in the Eastern Time Zone, with the rest in the Central Time Zone, as follows:[1]
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Counties to the north and east of this boundary are in the Eastern Time Zone, while counties to the south and west are in the Central Time Zone. 30% of the area in Eastern Time Zone is further west than areas to the south. This progression to the west is further continued into Indiana.
In the IANA time zone database, Kentucky is covered by four time zones, columns marked " * " contain the data from the file zone.tab:
CC * | Coordinates * | TZ * | Comments * | UTC offset | UTC offset DST |
---|---|---|---|---|---|
US | +404251−0740023 | America/New_York | Eastern (most areas) | −05:00 | −04:00 |
US | +415100−0873900 | America/Chicago | Central (most areas) | −06:00 | −05:00 |
US | +381515−0854534 | America/Kentucky/Louisville | Eastern - KY (Louisville area) Observed Central Time before July 23, 1961[2] |
−05:00 | −04:00 |
US | +364947−0845057 | America/Kentucky/Monticello | Eastern - KY (Wayne) Observed Central Time before October 29, 2000[3][4] |
−05:00 | −04:00 |