I thought that it might be interesting to calculate the time difference between a clock placed on Earth when I was born and a hypothetical clock placed at the centre of the sun at the same time.
I thought that I might use special relativity and the Lorentz factor. However, even if the speed of the Earth were constant (which it is not), the Earth still experiences acceleration as it traverses its (almost) elliptical orbit around the sun. Given there is acceleration, I suppose that I must use general relativity.
How might one calculate the time difference experienced between me and my barbecued brother?