City history

The Temporal History of Key West

A journey through the maritime, navigational, and chronological evolution of the westernmost reaches of the Florida Keys.

Key West's Chronology 3 chapters 5 min read

Chapter one

Name & etymology

Earliest documented name

Key West English
"Westernmost key"

Specific indigenous names for the island are not reliably documented in historical sources; the name Key West is the earliest documented designation.

Early 19th Century
Early 19th Century to Present Key West

Westernmost key

The name reflects its position as the westernmost significant island in the Florida Keys archipelago.

Chapter two

Timezone history

Current timezone America/New_York
Standard
Eastern Standard Time
Daylight
Eastern Daylight Time
1883 Standard Time Adoption

Following the national adoption of standard time, Key West transitioned from local solar time to the Eastern Time standard.

1966 Daylight Saving Formalization

The city follows Eastern Time, including the standard observation of seasonal daylight saving time transitions.

Chapter three

Timekeeping milestones

Monroe County Formation Administrative Birth

The establishment of Monroe County solidified Key West's role as a central administrative and maritime hub for the Florida Keys region.

Overseas Railroad Completion End of Isolation

Henry Flagler's railroad connected the island to the mainland, fundamentally changing the speed of transit and ending centuries of isolation.

Labor Day Hurricane Nature's Impact

A catastrophic hurricane devastated the region and destroyed the Overseas Railroad, marking a permanent shift in the island's infrastructure and economy.

Lighthouse Construction Maritime Safety

The completion of the Key West Lighthouse provided a critical navigational beacon for maritime travelers navigating the treacherous Florida Reef.

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