How long is the flight time from Gabon to the United States?

What is the approximate flight time between the places Gabon, officially the Gabonese Republic, the state in west central Africa sharing borders with Equatorial Guinea to the northwest, Cameroon to the north, and with the Republic of the Congo curving around the east and south and The United States of America (commonly called the United States, the U.S., the USA, America, and the States), the federal constitutional republic comprising fifty states and a federal district?

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Show reasoning Reasoning

I followed this chain of reasoning:

I know from locally stored knowledge that:
0°22'58"N is the latitude of Gabon ([fact: ["360677175@trueknowledge.com"]])

38°52'58"N is the latitude of the United States ([fact: ["361297511@trueknowledge.com"]])

9°27'00"E is the longitude of Gabon ([fact: ["679047672@trueknowledge.com"]])

77°01'00"W is the longitude of the United States ([fact: ["638069400@trueknowledge.com"]])

By calculation (generator: ["distance_between3@trueknowledge.com"]) I know that:
9,669.6357435 kilometres is the distance between Gabon and the United States

By calculation (generator: ["flight_time_between_two_places@trueknowledge.com"]) I know that:
12 hours and 30 minutes is the flight time between Gabon and the United States

I used the following facts to provide this answer:

0°22'58"N is the latitude of Gabon

agree disagree edit

38°52'58"N is the latitude of the United States

agree disagree edit

9°26'60"E is the longitude of Gabon

agree disagree edit

77°00'60"W is the longitude of the United States

agree disagree edit