The fact that two rocket ships passing each other see the other ships clock run slow fascinates me. But what about total elapsed time? Suppose a person on earth and a rocket ship on Mars 40,000,000 miles away are at rest relative to each other. They synchronize their clocks so that at t= 0 seconds the Martian ship accelerates to 95% of the speed of light and heads toward Eartha on Earth. The Martian ship flies very close to the Earth clock(about 1 meter) where Eartha and the Martian pilot can see each others clocks. At the moment they are side-by-side(with no Doppler Effect), they look at each others and their own clock, so that at closest approach there are four clock readings: 1 Eartha looks at her own clock. 2 Eartha looks at the Martian pilot's clock 3 The Martian pilot looks at his own clock 4 The Martian pilot looks at Eartha's clock The only answer that I am sure of is 1) Eartha will see a reading of 226 seconds on her clock, the time it takes the ship to travel 40,000,000 miles at 0.95c. What are the other clock readings for 2, 3, and 4.