Don Feromeno nodded and smiled. “Then let us assume that your purely imaginary aircraft is capable of traveling at the rate of 24,000 miles per hour or that, in an hour's time, you can circumnavigate the earth. In that case, starting from Lima at noon on Monday, and rushing eastward, you would arrive in Barcelona at 6.30 P. M. on Monday, though your watch would show it to be 12.15 P. M. You would reach Calcutta at 1 A. M. Tuesday, although still only 12.20 on Monday by your watch. At Hawaii you would find time had leaped back to 7.30 A. M. Monday, despite the fact that your watch showed 12.45 of the same day, and at 1 P. M. on Monday by your watch you would be back in Lima where the clocks would prove to that it was 2 P. M. despite the fact that you had been absent only one hour.