Before continuing, I wanted to verify I have fixed the issue with the wording of my variables, and, I have seen answers for this question elsewhere. I also know I'll get full marks regardless of how I use my equations, as this question obviously isn't very focused on that, however, for my own purposes I would appreciate a little guidance. I feel that everywhere I look people are doing this wrong. I want to make sure I'm at least doing it right this way. Thanks. Dodsy. 1. The problem statement, all variables and given/known data 2. Relevant equations 3. The attempt at a solution I figure, the time of the clock in orbit will run SLOWER than the clock not in orbit. So, I switched the equation around a bit. First, let's get our variables in order here, and add some fake values for things. A) Some proofs: B) Some proofs: I guess what I'm asking is, am I using the right equation? It's only logical to assume that the earth's representation of a year's time in seconds would be the Tm and the orbit's representation of a year's time in seconds would be the Ts. Any input?