Bertrand Piccard just landed on the tarmac at the Tulsa International Airport at 4:15 AM UTC, 6:15 AM CET on May 13th and 11:15 PM local time on May 12th.
He left Phoenix Goodyear Airport at 10:05 AM UTC, 12:05 PM CET, 3:05 AM local time on May 12th for a flight that lasted a total of 18 hours and 10 minutes. This flight has brought us to the heart of the United States, continuing the round-the-world solar flights. More about the flight here.