Special relativity and Earth in context to a stationary point. Could anyone please help me (I have a keen interest in relativity, but I am not an academic in the subject) If Earth is travelling around at around 1,750,204 mph then surely the time dilation caused must be significant! Lets take the twin paradox if we could take a set of new twins, leave one on earth (child A) and managed to put the other (child B) at a point of absolute zero (hypothetically assuming that there was a point of absolute zero). What would be the relative time dilation on the twins if after 10 years from child A’s perspective had passed. Basically how much older would we (along with Child A) consider child B? Like I say I’m interested in the time dilation we on earth go through every day and just accept as the norm! Also does time dilation have uniform increase with velocity or does it happen at an exponential rate towards c?